The Demarest Nature Center Association

Canoe Day, Birdhouses/Birdfeeder Building, Earth Day/Arbor Day

May 10, 2025

Event Details

Community Trail Walk

May 3, 2025

 

Click here to read our latest Winter 2025 newsletter!

 “We don’t stop hiking because we grow old,
we grow old because we stop hiking.

~Finis Mitchell

Keep an eye out for this magnificent tree
that is often overlooked but full of beauty and utility

~ Jeff Shaari

 “We don’t stop hiking because we grow old,
we grow old because we stop hiking.

~Finis Mitchell

Welcome To The Demarest Nature Center

The Demarest Nature Center is located in Demarest, NJ, USA, and is open to all persons, residents and non-residents alike, every day of the year. In addition to preserving and protecting important open space here in the midst of a large metropolitan area, the center seeks to educate young and old alike as to the beauty of nature and the importance of protecting our environment.

We, the trustees of the Demarest Nature Center Association, encourage you to use this site to find out more about the Demarest Nature Center and its programs. Click on the topic of your choice and find out more. The links will tell you about the Center, introduce you to our events and endeavors, and also take you to other nearby nature centers, as well as environmental organizations, National Parks, and suggestions for things to do. The site is constantly growing and being updated, so we hope you will come back again and again.

Nature News

Huge Roman 'jigsaw' reveals 2,000-year-old wall paintings

Thousands of fragments of plaster are pieced together to reveal frescos from a Roman London villa. more

Poison in the water: the town with the world’s worst case of forever chemicals contamination

When a small Swedish town discovered their drinking water contained extremely high levels of Pfas, they had no idea what it would mean for their health and their children’s futureIf more

‘Own less, have more’: French app rents out underused household items

Poppins connects people who have things they use rarely with those who want to buy or rent themDo you need a kitchen mixer, a drill, a tent or a raclette more

Rampaging raccoons: how the American mammals took over a German city – and are heading across Europe

Many in Kassel have embraced the animal but the EU classes it as an invasive species and ecologists are divided about what to do nextIn Kassel, everyone has a story more

Specter of dams and diversion looms over Southeast Asia’s Salween River

MAE HONG SON, Thailand — The shores of Myanmar became visible from Sob Moei village in northeastern Thailand as the morning mist rises over the Salween River, the flowing water more

In a state with rising energy bills, the race is key for its climate future. more

The United States Geological Survey released a report on Wednesday showing vast quantities of undiscovered oil and gas resources beneath public lands. The analysis comes as Republicans in Congress try more

BESSEMER, Ala.—When a representative for a hotly contested development began to speak inside City Hall here Tuesday evening, the lights went out.  A packed room of zoning commissioners and upset more

Whales still aren’t ‘eating all the fish’ (commentary)

In a world full of bad news, there’s been good news in whale conservation. Many of the great whales are coming back. In fact, some populations have been recovering faster more

Your favorite campgrounds, hiking trails, and forests could soon be up for auction

Republicans want to make 250 million acres of public lands eligible for sale to housing developers. more

When heat waves hit, clownfish shrink to survive, study finds

Clownfish are known for their remarkable ability to change sex to survive. Turns out, one species, clown anemonefish (Amphiprion percula), popularized in the Pixar hit movie Finding Nemo, have yet more

NICE, France—Resolute about their efforts to protect 30 percent of the Earth’s global ocean by 2030, world leaders agreed to sweeping but nonbinding commitments at last week’s United Nations Ocean more

This story was published in partnership with Northern Journal and is the second in a two-story series. ELIM, Alaska—Daylight was waning as Beverly Nakarak opened the throttle of her snowmachine more

Peru’s new bycatch training aims to help save hooked sea turtles: Q&A with fisher Gustavo Rosales

Attracted by bait, sea turtles off the coast of southern Peru often get caught on fishing hooks intended for mahi-mahi. Releasing the turtles is complicated as they’re heavy animals, and more

Brazil auctions off several Amazon oil sites despite environmentalists and Indigenous protests

BRASILANDIA, Brazil (AP) — Brazil has auctioned off several land and offshore potential oil sites near the Amazon River, aiming to expand production in untapped regions despite protests from environmental more

Climate crisis could hit yields of key crops even if farmers adapt, study finds

Production of staple crops projected to fall by as much as 120 calories per person per day for every 1C of heatingSome of our critical staple crops could suffer “substantial” more

On its 50th anniversary, ‘Jaws’ continues to provoke shark conservationists

The movie Jaws, released on June 20, 1975, was one of the very first Hollywood summer blockbusters, and remains one of the highest-grossing films of all time, adjusted for inflation. more

Finishing Dom Phillips’ posthumous book was ‘the hardest thing emotionally’ co-authors say

“The journalist should not be part of the story.” Jonathan Watts, British journalist based in Brazil, recalls the words of fellow British journalist Dom Phillips and the challenges they posed more

At last, a victory for rivers over megafarms: now councils can’t treat toxic waste as someone else’s problem | Charles Watson

We won a high court case against Shropshire council’s plans for a new polluting poultry unit. Now a precedent has been setCharles Watson is chair and founder of River ActionThe more

Natural bridges to reconnect the last Javan gibbons

JAVA — Indonesia. Throughout the misty mountains of central Java, the call of the Javan gibbon (Hylobates moloch) once echoed throughout the forest. Today, their voices are fading. Java is more

Heaps of discarded clothing from the U.K. have been dumped in protected wetlands in Ghana, an investigation found.Read more on E360 → more

Pelicans recover, but dolphins and other species struggle 15 years after BP oil spill

Oil-soaked pelicans struggling to fly came to symbolize the catastrophic impacts of the 2010 BP Deepwater Horizon oil spill on the inhabitants of the Gulf of Mexico. Fifteen years later, more

US proposes adding seven pangolin species to Endangered Species Act

The U.S. Fish and Wildlife Service has recently proposed listing seven species of pangolins, the most trafficked mammals on the planet, under the Endangered Species Act. If finalized, an ESA more

Protecting Tanzania’s Udzungwa Mountains means putting communities at the center of conservation

Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. Conservation efforts often falter on the fault line between ecological ambition and human more

US Justice Department says Trump can cancel national monuments that protect landscapes

BILLINGS, Mont. (AP) — Lawyers for President Donald Trump’s administration say he has the authority to abolish national monuments meant to protect historical and archaeological sites. That includes two monuments more

In Peru, Yine women show how defending the Amazon supports local livelihoods

As Linda Alvarado, a young Indigenous Yine leader, travels through the forest in the depths of the Peruvian Amazon, she collects clusters of murumuru seeds. These honeycomb-shaped structures fall from more

Clothes from UK brands found discarded in Ghana wetland dumps – video

An Unearthed and Greenpeace investigation found garments by UK brands on a rubbish dump in a protected wetland in Accra, Ghana. The reporters found items from Next, George at Asda more

Sharks and oysters set to thrive in warmer UK waters

Climate change will benefit basking sharks in the UK but creatures like the longest living animal may struggle. more

Sharks and oysters set to thrive in warmer UK waters

Climate change will benefit basking sharks in the UK but creatures like the longest living animal may struggle. more

Antarctic seal numbers falling drastically due to melting sea ice, research shows

British Antarctic Survey finds one breed of seal has declined by 54% since 1977Antarctic seal populations are drastically declining as the sea ice melts around them, new research has shown.Researchers more

In 2020, Dr. Deborah Gentile helped lead a study that showed children living near major sources of industrial pollution in Pennsylvania’s Allegheny County were diagnosed with asthma at triple the more

With over 40,000 people evacuated and infrastructure overwhelmed, Indigenous leaders say climate change is hitting their homelands hardest. more

Spy ships, cyber-attacks and shadow fleets: the crack security team braced for trouble at sea

As international tensions mount and hackers grow more sophisticated and audacious, the Nordic Maritime Cyber Resilience Centre is constantly monitoring the global threat of war, terror and piracyShips being taken more

Bangladesh plans new ‘protected area’ for elephants in its conflict-prone northeast

In response to rising human-elephant conflicts, Bangladesh is planning to declare the elephant habitats in its northeastern parts a protected area for the species. The country is one of the more

Discarded clothes from UK brands dumped in protected Ghana wetlands

Garments thrown out by consumers from Next, George, M&S and others found in or near conservation areasClothes discarded by UK consumers and shipped to Ghana have been found in a more

Country diary: Into the twilight zone with horseshoe bats | Derek Niemann

Frome, Somerset: When they finally join the party, their calls are a messy symphony better suited to an old sci-fi movieA little before nightfall, we enter the river gorge equipped more

We should all grieve about the state of the world. It can be an integral part of activism | Kelley Swain

Activism comes in many forms. I hope, in some small way, my writing is part of itTime, it seems, is moving in strange ways for many of us. A colleague more

A father died last summer. His son sat on the porch with a baseball glove waiting for a game he never got to play. The man didn’t die in a more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09177-7The validation of inhibitors targeting PurF, a novel drug target for tuberculosis drug discovery, is described. more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09186-6Structural, pharmacological and computational studies reveal how different classes of positive allosteric modulators bind to distinct allosteric sites and use noncanonical mechanisms to activate more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09160-2A new group of multi-principal-element alloys, designed through machine learning and extreme microstructural heterogeneities, achieve high strength (1.8-GPa yield strength) and ductility (25% uniform more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09156-yStable coating of filters with a thin liquid layer enhances adhesion of airborne particulates while maintaining high air permeability, resulting in longer lifetimes and more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01899-yAncient proteins and calcified dental plaque identify heavy-browed fossil from China as a Denisovan. more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09062-3A colour sensor array based on multilayer monolithically stacked lead halide perovskite thin-film photodetectors achieves higher quantum efficiency and superior colour accuracy compared to more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09151-3Human brain morphodynamics are explored using organoids. more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01867-6The activity of neuronal cells that release the neurotransmitter dopamine is thought to encode differences between predicted and actual rewards. This ‘prediction error’ is more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09239-wEditorial Expression of Concern: Transformation of primary human endothelial cells by Kaposi’s sarcoma-associated herpesvirus more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01891-6Messages from history. more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09136-2We present a computational approach to the design of high-efficiency enzymes with catalytic parameters comparable to natural enzymes, enabling programming of stable, high-efficiency, new-to-nature more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09164-yA strategy for engineering photon-avalanche nanoparticles is proposed such that they exhibit an unprecedentedly strong nonlinear optical response and their emissions scale by more more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09285-4Author Correction: Collagenolysis-dependent DDR1 signalling dictates pancreatic cancer outcome more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09171-zInsights into the dogrose genome and centromeres explain their ability to achieve stable sexual reproduction. more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09120-wDysregulated CD4 T cells that recognize gut commensal antigens are able to infiltrate the central nervous systems and are re-stimulated by host proteins, resulting more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09117-5On the effects of fault alignment on slip stability more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01710-yEcological modelling reveals that the range of habitats humans occupied in Africa increased before our species established a lasting presence outside the continent. more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09118-4Reply to: On the effects of fault alignment on slip stability more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01707-7Trauma leaves traces in the brain. A study of alterations in gene regulation in the brains of people with post-traumatic stress disorder offers insights more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01934-yExperiments suggest moths use the Milky Way to orientate themselves — plus, evidence that humans expanded into new ecosystems 70,000 years ago. more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01705-9Most pixels in cameras detect only red, green or blue light. A sensor made from perovskite materials absorbs all three, improving image brightness and more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01883-6Models estimating the levels of flight-directing staff need a rethink. more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01875-6Human cells contain dozens of different types of proteinaceous droplets called biomolecular condensates. A newly developed tool provides insights into the behaviour of biomolecules more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09083-yA comprehensive analysis of the cell-specific molecular regulatory mechanisms underlying post-traumatic stress disorder in the human prefrontal cortex. more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01876-5Carbon fibre-reinforced polymers are high-performance materials used in various items, including aircraft, wind-turbine blades and mountain bicycles. A process has been developed that uses more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01897-0Computer approach creates synthetic enzymes 100 times more efficient than those designed by AI. more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09166-wR9AP is a key receptor for entry of Epstein–Barr virus into human epithelial and B cells, and interacts directly with the viral glycoprotein gH/gL more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09182-wHuman enhancers contain a high density of sequence features that are required for their normal in vivo function. more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09266-7Strategies for climate-resilient global wind and solar power systems more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09190-wIn a mouse model, maternal obesity during pregnancy can lead to fatty liver disease in the offspring, driven by aberrant developmental programming of Kuppfer more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01885-4Research ships rarely brave the Greenland Sea in winter. Early this year, scientists ventured into the ice-covered waters to capture crucial data about the more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09180-yDuring visual learning, neural plasticity is driven by unsupervised learning in mice. more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01935-xBogong moths migrate hundreds of kilometres and back each year using the southern night sky as their compass. more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09085-wAnalysis of data on six stable crops, capturing two-thirds of global crop calories, allows estimation of agricultural impacts and the potential of global producer more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01870-xStudies of ancient DNA have generally found that societies in Neolithic and Bronze Age Eurasia were organized around the male line. However, investigation of more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09135-3Every spring, Bogong moths use the starry night sky as a compass to navigate up to 1,000 km towards their alpine migratory goal. more

Nature, Published online: 18 June 2025; doi:10.1038/s41586-025-09154-0Analysis of species distribution models in a pan-African database comprising chronometrically dated archaeological sites over the past 120,000 years shows major expansion in the human more

Nature, Published online: 18 June 2025; doi:10.1038/d41586-025-01709-5Australian migratory moths use the night sky to maintain their course when they travel long distances to shelter in cool caves during the arid more

With new Senate legislation, Congress is one step closer to gutting the Inflation Reduction Act

The so-called Big Beautiful Bill targets the tax credits designed to put the U.S. on the path to net-zero carbon emissions. more

For the first time since the United Nations started its annual climate talks in 1995, the United States is not sending an official government delegation to one of the biannual more

Last Saturday, Laurie Marshall joined hundreds of people in El Paso, Texas, for the city’s “No Kings Day” protests, part of a nationwide series of actions in opposition of what more

Soaring coffee prices are fueled by deforestation, but solutions exist

Roughly a billion people enjoy coffee daily, and more than 100 million people rely on it for income. However, the coffee industry is the sixth-largest driver of deforestation and is more

Another way to check the health of a coral reef: Study the microbes in the seawater

Prochlorococcus, a genus of bacteria that’s key to oxygen production in the ocean, tends to disappear when faced with marine pollution. It lives throughout the sunlit layer of tropical oceans more

Study finds planetary waves linked to wild summer weather have tripled since 1950

WASHINGTON (AP) — A new study says climate change has tripled the frequency of atmospheric wave events linked to extreme summer weather in the last 75 years. And the research more

‘World’s largest’ carbon credit deal under fire as Amazon prosecutors seek repeal

A Brazilian state was set to close a massive $180 million carbon credit deal, but now faces an escalating legal battle, accused of violating national laws and Indigenous rights, potentially more

First elephant sighting in 6 years sparks hope for species’ return to a Senegal park

For the first time in six years, an elephant was seen in Senegal’s Niokolo-Koba National Park. Grainy black-and-white footage shows Ousmane, a bull 35 to 40 years old named after more

This story was published in partnership with Northern Journal and is the first in a two-story series. VANCOUVER, British Columbia—On a January evening, dozens of people crammed into a banquet more

Endangered angelshark decline may be overestimated, study shows

Previous reports of drastic declines in the elusive angelshark in Wales, U.K., may be overestimated and may be partly explained by changes in fishing trends throughout the past decades, according more

Poultry megafarm in Shropshire halted over river pollution concerns

Planning permission quashed by high court after officials failed to consider impact of spreading manure on landPlanning permission for a poultry megafarm in Shropshire has been overturned in a ruling more

Rwanda’s crowned cranes make a remarkable comeback

Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. A decade ago, Rwanda had more crowned cranes in living rooms than in the more

At COP30 & beyond, the fight for climate justice must end corporate impunity (commentary)

The climate crisis demands urgent action by governments to reduce emissions and to transition to new renewable energy systems for people. This means that fossil fuel corporations must be forced more

Typhoon Wutip ravages Asia with strong winds and flooding

Several people have been killed after heavy rains hit parts of Asia over the past week, brought by the latest in a series of typhoons that scientists warn are growing more

Wildfires push tropical forest loss in Latin America to record highs

MEXICO CITY — In 2024, six Latin American countries were in the top 10 nations with the highest loss of tropical primary forest, according to recent data from the University more

‘Ayahuasca tourism’ is a blight on Indigenous peoples and our environment | Nina Gualinga and Eli Virkina

The popularity of ‘healing’ through psychedelics is fueling exploitation of Indigenous peoples and threatening biodiversity in EcuadorIn the world of the Ecuadorian Amazon, humans, plants and animals are relatives, and more

Waska:  the cost of spiritual healing in the Amazon

The plant medicine hayakwaska (ayahuasca), marketed as a mystical shortcut to healing and enlightenment, is an example of what the Indigenous storyteller Nina Gualinga, sees as commodification and extractivism in more

To reduce rhino poaching — by a lot — cut off their horns, study says

Poaching has decimated rhino populations across Africa, but a new study finds that dehorning the animals, or surgically removing their horns, drastically reduces poaching. The study focused on 11 reserves more

The reef that shouldn’t exist

Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. In the summer of 2024, searing ocean temperatures devastated much of Mesoamerica’s corals. more

Protect one large forest, or many small ones? New study reignites conservation debate

Which provides more shelter for species biodiversity: a large, continuous tract of forest, or a number of small forest fragments that add up to the same land area? This question more

Swiss village evacuated over threat of rockslide

GENEVA (AP) — Swiss authorities cleared a village in the country’s east over a potential rockslide, three weeks after a mudslide submerged a vacated village in the southwest. Residents of more

Pandemic-era slump in ivory and pangolin scale trafficking persists, report finds

A recent report surveying seizures of pangolin scales and elephant ivory over the past decade has found a sharp decline following the COVID-19 pandemic. Using data from media reports, public more

How America’s prairie was nearly destroyed — and why it should be restored

A new book traces the environmental collapse of a crucial ecosystem and how its return could fight climate change. more

Insects are dying: here are 25 easy and effective ways you can help protect them

From turning out the lights to letting leaves rot, these small steps can create big changes at home or in the wild‘Half the tree of life’: ecologists’ horror as nature more

England needs more hosepipe bans and smart water meters - watchdog

The Environment Agency warns England needs a 'continued and sustained effort' to cut water demand. more

England needs more hosepipe bans and smart water meters - watchdog

The Environment Agency warns England needs a 'continued and sustained effort' to cut water demand. more

The world’s biggest banks continue to bankroll the expansion of the fossil fuel industry and have largely retreated from their climate commitments, even as the world heads toward breaching thresholds more

Indonesian utility PLN ‘kneecaps renewables’ with embrace of fossil fuels

Indonesia’s state-owned power utility has backed away from promises to rapidly expand its use of renewable energy, opting to focus instead on building more power stations that burn fossil fuels. more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01840-3Synthetic peptide fixes biomolecular condensates, revealing how these enigmatic cell structures actually work. more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01906-2Tighter regulation is needed for AI companions more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01706-8Genomic analyses of mother–father–fetus trios after early pregnancy loss uncover contributions from chromosomal abnormalities and subtle genetic variants. more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01888-1After decades of pioneering institutional change in Chinese research, neuroscientist Rao Yi explains why US hesitation might offer China an opportunity to catch up more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01744-2Julian Kirchherr craved a role with real-world impact. A career that straddles academia and management consultancy helped him to achieve his goal. more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01905-3Is there a link between gut microbes and ageing? more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01915-1Researchers in both countries are feeling the effects of a string of missile attacks exchanged between them. more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01884-5A toolkit outlines how academia can prevent various forms of misconduct. more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01842-1The average number of bleeding episodes for men with haemophilia B dropped almost tenfold after treatment. more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01886-3Research is revealing the cellular mechanisms that link mental well-being and longevity. more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01708-6Premenopausal women are more likely than men to develop certain cancers. Pathways activated by the sex hormone responsible could be targeted in cancer therapies. more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01931-1A US judge has ruled that cancelled funding for projects on diversity, equity and inclusion and COVID-19 must be restored by the National Institutes more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01907-1US–China trade conflict threatens biomedical collaboration more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01893-4International standards set for measuring location and time, and an unusual type of lake-water movement in this week’s pick from the Nature archive. more

Nature, Published online: 17 June 2025; doi:10.1038/s41586-025-09254-xAuthor Correction: RUNX2 promotes fibrosis via an alveolar-to-pathological fibroblast transition more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01881-8As China continues its scientific ascent, the rest of the world should keep engaging. more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01908-0We need to show AI what didn’t work as well as what did more

Nature, Published online: 17 June 2025; doi:10.1038/d41586-025-01923-1Concerned about freedom of science and truth more

Progress and frustration mark the UN’s third Ocean Conference

The historic high seas treaty is not yet in effect — but countries drew closer to implementing it. more

After crackdown on illegal miners, Indigenous Munduruku still grapple with health aftermath

This is part five of a series on the operation to evict illegal gold miners from Munduruku Indigenous territories. Read part one, part two, part three, and part four. “We’re more

Brazil & China megarailway raises deforestation warnings in the Amazon

From Lucas do Rio Verde, a major agricultural hub in the state of Mato Grosso, the railway would be built from scratch, advancing into the Amazon’s Arc of Deforestation. more

Alaska just hit a climate milestone — its first-ever heat advisory

The heat bearing down on central Alaska "could feel like 110" in a state where the sun can shine all day. more

In the long-contentious Klamath River watershed, an experiment that turned a barley field into a wetland not only improved water quality. It also offered a path forward for restoring populations more

From sea monkeys to Great Salt Lake gold

With science-based management and real-time data, Utah’s brine shrimp fishery balances the economy and ecology. more

New York City’s new elevated waterfront – in pictures

Nearly 13 years after Hurricane Sandy flooded lower Manhattan, the first section of East River Park, designed to withstand storm surges, opens Continue reading more

When the magnetic field around the Earth grows stronger, oxygen levels rise. That is the surprising finding of a new study looking at more than half a billion years of more

Truckloads of Scotland's rubbish will be sent to England, experts say

Up to 100 trucks a day could take Scotland's waste to England once a landfill ban comes in at the end of the year. more

Trump quietly shutters the only federal agency that investigates industrial chemical explosions

Hazardous chemical accidents happen in the U.S. about every other day. Who will investigate them now? more

What warped the minds of serial killers? Lead pollution, a new book argues.

Ted Bundy, the Green River Killer, and others terrorized the Pacific Northwest. "Murderland" asks what role polluters played. more

Nature, Published online: 16 June 2025; doi:10.1038/d41586-025-01887-2The first US woman to fly in space said little about her personal life in public. A candid film discloses the pressures she endured. more

Nature, Published online: 16 June 2025; doi:10.1038/d41586-025-01898-zHuman cells injected into amniotic fluid find their way into fetal mouse organs. more

Nature, Published online: 16 June 2025; doi:10.1038/d41586-025-01889-0Time-resolved cryo-electron microscopy can resolve protein motion on millisecond or even microsecond timescales, but the need for highly specialized tools and skills limits the more

Nature, Published online: 16 June 2025; doi:10.1038/d41586-025-01914-2The decision means that the US biomedical agency has to restore funding to hundreds of research projects, but the government will likely appeal. more

Nature, Published online: 16 June 2025; doi:10.1038/d41586-025-01919-xFifty countries have now ratified the UN High Seas Treaty, an agreement to put 30% of the ocean into protected areas. Plus, researchers have more

Nature, Published online: 16 June 2025; doi:10.1038/d41586-025-01880-9From today, all new submissions to Nature that are published will be accompanied by referees’ reports and author responses — to illuminate the process more

Nature, Published online: 16 June 2025; doi:10.1038/d41586-025-01909-zModels suggest that human-caused global warming would have been detectable in the nineteenth century with today’s know-how. more

Nature, Published online: 16 June 2025; doi:10.1038/d41586-025-01882-7A competition to develop computational approaches to detect ‘novelty’ in published papers will help metascientists to study how out-of-the-box research changes the scientific landscape. more

Nature, Published online: 16 June 2025; doi:10.1038/d41586-025-01890-7This interviewee rehabilitates illegally traded pangolins that fetch a high price on the black market. more

Nature, Published online: 16 June 2025; doi:10.1038/s41586-025-09262-xCryo-EM structure of a natural RNA nanocage more

'Forever chemical' found in all but one of tested UK rivers

The long-term impact of the chemical on human health is still unclear and being researched. more

Norway is all in on electric cars. What can the U.S. learn?

Norway’s crusade to eliminate gasoline powered cars was years in the making. Can that achievement be replicated? more

Race to mine metals for EV batteries threatens marine paradise

Photographs appear to show how nickel mining damaged one the world's most diverse marine environments more

Texas finalizes $1.8B to build solar, battery, and gas-powered microgrids

The state Legislature finally passed a proposal to fund backup power for critical facilities like nursing homes and fire stations. more

Is the ocean ‘having a moment’? This was the UN summit where the world woke up to the decline of the seas

A slew of global leaders met in the south of France to discuss the future of the oceans. There was ‘momentum’ and ‘enthusiasm’, but there were critical voices tooThe sea, more

'Glimmer of hope' for marine life at UN Ocean conference

Environmental groups have praised government's progress made on marine protection at the UN meeting more

Our Mission

Demarest Nature Center - Duffy Bridge

According to the 1972 articles of Incorporation, the purposes of the organization are:

  • To acquire or lease undeveloped lands and establish thereon educational building(s).
  • To develop natural history and conservation education programs in cooperation with schools, colleges, hospitals, youth groups and other organizations which will develop an understanding and appreciation of natural resources.
  • To cooperate with national, state, county, municipal and private natural resource agencies in providing an outdoor laboratory in which to demonstrate natural resource problems and management techniques.

 Check Out Our Latest Newsletter & History of DNC

Events

What We Sponsor

The DNC sponsors numerous programs to bring residents of Demarest and the surrounding areas into closer contact with wildlife and the natural world. Programs have varied, including lectures on native plants, family hikes, maple syrup making, bird watching & counts, birdhouse building, mushroom foraging walk, community trail walk and children’s scavenger hunts.  Local outdoor activities have been held at the Nature Center, Wakelee Field, various school grounds, and at the Duck Pond.

TripAdvisor

The Demarest Nature Center is on TripAdvisor! Feel free to share your experiences with us. We would appreciate your feedback.

Follow us on

Mail

Demarest Nature Center
Box 41
Demarest, NJ 07627

Location

90 Park St, Demarest, NJ 07627

Trail Map

You can download a Trail Map here.

Become a Member

Since its incorporation in 1977 the Demarest Nature Center Association has cared for a 55-acre parcel of land bordered by Columbus Road on the west and County Road on the east. The Demarest Nature Center is open to all every day of the year. In addition to protecting woods, vernal ponds, meadows, and a section of the Tenakill Brook, as well as establishing and maintaining walking trails, the center provides educational events for everyone about the beauty of nature and the importance of preserving our amazing forest habitat. Your membership dollars go towards sponsorship of environmental education programs for kindergarten through the fourth grade in the Demarest schools, and a yearly scholarship given to a local high school senior who plans to pursue environment-related studies in college. Your membership also helps support our birdhouse/bird feeder building program, our annual photo contest, maple syrup making, environmental scholarships, monthly community trail walks and the Craft Show at Oktoberfest/Fall Festival Event.

The Demarest Nature Center Association is a 501(c)(3) not-for-profit corporation, run solely by volunteers and receives no funding from the Borough of Demarest.

Residents of Demarest receive all DNC mailings as postal patrons. Non-resident members receive DNC mailings by 1st class mail.

Come Join Us And Become a Member

Photo Gallery