The Demarest Nature Center Association

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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

Will there be a drought where I live?

We take a look at river, reservoir and groundwater levels after a particularly dry few months. more

Will there be a drought where I live?

We take a look at river, reservoir and groundwater levels after a particularly dry few months. more

EL PASO—U.S. Customs and Border Protection plans to build a 1.3-mile border barrier on Mount Cristo Rey, an iconic mountain rising above the Rio Grande and the neighboring cities of more

Inside Climate News has won an award from the Society of Professional Journalists for its investigation into a little-known arbitration system that has allowed multinational corporations to win billion-dollar claims more

Critics are calling it "the most anti-environmental bill of all time." more

On Monday, the website for the federal government’s 35-year old Global Change Research Program—an entity that is required to release periodic reports concerning the environmental change in the Earth’s climate—went more

This nonprofit connects frontline conservationists with funders, catalyzing impact

Jean-Gaël “JG” Collomb says community-based conservation organizations know best how to tackle the complex conservation challenges unique to their ecosystems. However, they’re also among the most underserved in terms of more

Blue cranes now listed as vulnerable in South Africa

The blue crane, South Africa’s national bird, is now at greater risk of extinction, as a new regional assessment lists the species as “vulnerable.” “A Near-Threatened listing is no longer more

The Supreme Court just ended its term. Here are the decisions that will affect climate policy.

Experts say the most impactful decisions have enabled the Trump administration to gut the federal workforce and freeze funding. more

A Kenya marine biodiversity credit program restores mangroves — and livelihoods

MARERENI, Kenya — The scorching afternoon sun stretches across the semiarid landscape of Marereni, in Kenya’s Kilifi county, where salt and sea shape both the land and the lives that more

The small island nation of Tuvalu is being swallowed by the sea.  With just around 10,000 residents, this Pacific network of reef islands and atolls has seen sea levels rise more

With coral-rich Churna Island now an MPA, Pakistan takes baby steps on ocean protection

KARACHI — From the sands of Manjhaar Beach on the far outskirts of Karachi, Pakistan, an island is just visible 10 kilometers, about 6 miles, offshore. Mist rising from the more

Major reports about how climate change affects the US are removed from websites

WASHINGTON (AP) — Legally mandated U.S. national climate assessments seem to have disappeared from the federal websites built to display them. The reports tell state and local governments and everyday more

Countries seek urgent CITES protection of more than 70 sharks and rays

Several proposals seeking greater protection of more than 70 shark and ray species from commercial trade were raised this week for deliberation at the 20th meeting of CITES, the global more

The Guardian view on Europe’s heatwave: leaders should remind the public why ambitious targets matter | Editorial

With net zero targets under attack from the populist right, dangerously high temperatures should refocus mindsAt times like now, with dangerously high temperatures in several European countries, the urgent need more

Bogong moths use stars and the Milky Way to make epic migration

In Australia, millions of newly hatched Bogong moths embark on an impressive journey twice a year. Each spring, they hatch from eggs in their breeding grounds in Australia’s southeast and more

Endangered primates use new canopy bridges in a Brazilian Amazon city

Hundreds of monkeys can now safely cross roads in Alta Floresta, a city in the southern Brazilian Amazon. Seven canopy bridges have reconnected rainforest fragments that were separated by urban more

Indigenous communities left in the dark on carbon scheme on their land

Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. In the Colombian Amazon, an environmental initiative touted as a climate-saving project has turned more

‘Seeing climate change like this, it changes you’: dance duo Bicep on making a new project in Greenland

Collaborating with Indigenous artists and sampling melting glaciers, the Northern Irish artists are championing Arctic culture – and documenting a collapsing worldRussell glacier, at the edge of Greenland’s vast ice more

Private financing for Argentina’s lithium is anything but green, critics say

Argentina has the second-largest reserves of lithium in the world, at around 22 million tons. As battery technology advances and global demand for the mineral grows, the country is trying more

After 150 years, a prized box returns to an Indigenous nation in Canada: ‘I felt like royalty traveling with it’

The unlikely return of the bentwood box underscores the challenges facing Indigenous communities working to reclaim items raided from their landsWhen the plane took off from Vancouver’s airport, bound north more

Ancient Himalayan village relocates as climate shifts reshape daily life

SAMJUNG, Nepal (AP) — A Himalayan village in Nepal has vanished — emptied by climate change. Samjung, perched in the high-altitude Upper Mustang region, was once home to a few more

Ancient eco-friendly pilgrimage brings modern threats to Sri Lanka wildnerness

Kataragama, SRI LANKA — For centuries, barefoot pilgrims have walked through the arid jungles and lush forests of Sri Lanka’s east and south, following a sacred route to a fabled more

You love the outdoors. So why are you pooping all over it?

Millions of Americans a year visit national parks and many leave their business anywhere. Contrary to popular belief, that deluge of poop is not going to decomposeLast year, I watched more

Texas is awash in billions of gallons of produced water, the wastewater brought to the surface in oil and gas drilling and fracking.  Most produced water is injected into disposal more

The National Science Foundation will be moving so the federal Department of Housing and Urban Development can take over its offices in Alexandria.  The 1,800 employees at the science foundation more

Under a new agreement, London will source enough solar power to run its light railway and tram networks entirely on renewable energy.Read more on E360 → more

Life on landfill: the people who scrape a living from our waste – in pictures

Three leading female photographers – Gulshan Khan, Laura El-Tantawy and Lisl Ponger – explore the complex global entanglements of climate crisis, environmental justice and human survival Continue reading more

Country diary: Like wrecked prizes, the body parts of pheasants litter the landscape | Nicola Chester

North Wessex Downs, Hampshire: Predators are increasingly drawn by the shooting-season escapees. But, miserably, other ground-nesting birds and their eggs are being taken, tooAway from where arable fields have enriched more

‘Even if we stop drinking we will be exposed’: A French region has banned tap water. Is it a warning for the rest of Europe?

Forever chemicals have polluted the water supply of 60,000 people, threatening human health, wildlife and the wider ecosystem. But activists say this is just the tip of the Pfas icebergOne more

Nature, Published online: 01 July 2025; doi:10.1038/s41586-025-09325-zArchitecture, dynamics and biogenesis of GluA3 AMPA glutamate receptors more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-01939-7Efforts by leaders of the US national academies to adjust to the new political reality have spurred member concerns about capitulation and censorship. more

Nature, Published online: 01 July 2025; doi:10.1038/s41586-025-09294-3Publisher Correction: Metabolic adaptations direct cell fate during tissue regeneration more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-02031-wVirtual chatbots that simulate conversations with famous actors or sci-fi characters can have real-world consequences. more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-01716-6Place cells are neurons that encode spatial locations. Experiments in chickadees reveal that the cells activate even when those locations are viewed from a more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-02030-xThe results of technology research and development must find their way into the published literature. New models of regulation could help. more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-01828-zInternational scholars targeted by Trump administration are among those seeking greater protection. more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-02079-8It should be free to apply to graduate school more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-02090-z‘Distributed peer review’ of grants makes process more than twice as fast — and includes some cheat-prevention measures. more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-02086-9Images hold clues to risk of dementia and various age-related diseases. more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-02077-wHuman space travel risks contaminating Mars more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-02078-9Global pandemic agreement needs sustained pressure to succeed more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-01895-2Lukewarm efforts to get Britain to save on the energy bill, and a mysterious string of house-fly deaths, in our weekly dip into Nature’s more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-02076-xProtect Iran’s scientists from attacks more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-01829-yBy taking a few technical steps, I’ve made my teaching more accessible to my students — and to biologists around the world. more

Nature, Published online: 01 July 2025; doi:10.1038/s41586-025-09309-zAuthor Correction: Targeting the SHOC2–RAS interaction in RAS-mutant cancers more

Nature, Published online: 01 July 2025; doi:10.1038/d41586-025-02016-9The decades-old limit on how long human embryos can be grown in culture is under debate. A new road map outlines how to extend more

New research sheds light on how rising temperatures are squeezing farmers and raising prices for consumers. more

Far from the front lines of the climate crisis, 100 men and women in air-conditioned offices, 61 of them millionaires, are making decisions that could increase United States carbon dioxide more

It’s on the walls of brownstones and train stations and in New York City parks. And it isn’t mold—it’s English Ivy.  A non-native plant, English Ivy (Hedera helix) outcompetes native more

NOAA delays the cutoff of key satellite data for hurricane forecasting

The National Oceanic and Atmospheric Administration said Monday it is delaying by one month the planned cutoff of satellite data that helps forecasters track hurricanes. Meteorologists and scientists warned of severe more

Two coasts, one struggle for octopus fishers battling overfishing and warming waters

ASTURIAS, Spain, and YUCATÁN, Mexico — On a mild February morning, Isaac Blanco quickly places half a sardine into each cage as his brother, Julio, steers their boat along the more

104 companies linked to 20% of global environmental conflicts, study finds

A recent study has found that just 104 companies, mostly multinational corporations from high-income countries, are involved in a fifth of the more than 3,000 environmental conflicts it analyzed. The more

Communities and ecosystems in Venezuela learn to adapt to life after glaciers

MÉRIDA, Venezuela- José Betancourt, 75, climbed to the glacier of Pico Bolívar, Venezuela’s highest peak, 158 times before it disappeared in 2017. He’s also summited the nearby Pico Humboldt, the more

Spain records highs of 46C and France under alert as Europe swelters in heatwave

Extreme heat ‘the new normal’, says UN chief, as authorities across the continent issue health warningsA vicious heatwave has engulfed southern Europe, with punishing temperatures that have reached highs of more

Flying ants: why this year’s mating season could be longer and more frenzied than ever

Warm weather and wet conditions caused by the climate emergency could trigger huge swarms of winged ants this July, experts warn. But why do they all take to the skies more

Banks bet big on fossil fuels, boosting financing in 2024, report finds

Financing for the fossil fuel sector from the world’s largest banks surged in 2024 to $869 billion, according to a recent report by the Rainforest Action Network (RAN) and other more

First-ever assessment highlights threats to Atlantic cold-water corals

They live in the ocean’s coldest, darkest depths, far from sight — but cold-water corals are far from safe. In a first-of-its-kind study published in Marine Biodiversity in June, a more

How unusual is this UK heat and is climate change to blame?

Scientists are clear that global warming is making heatwaves like this hotter and more likely. more

Puerto Rico’s solar-powered village – in pictures

For years, Puerto Ricans have faced high electricity costs and regular blackouts. The town of Adjuntas, in the central mountains, boasts the island’s first community-owned solar microgrid Continue reading more

Scorching temperatures grip Europe, putting regions on high alert

ANKARA, Turkey (AP) — Forest fires fanned by high winds and hot, dry weather damaged some holiday homes in Turkey as a lingering heat wave that has cooked much of more

Nepal launches plan to boost science, awareness to save dholes

KATHMANDU — Nepal has launched a species action plan focused exclusively on conserving the endangered dhole (Cuon alpinus), also known as the Asiatic wild dog. The new 262.9 million rupee more

England wildlife regulator chair ‘enthusiastic’ about lynx rewilding

Views on apex predator still polarised, says Natural England head, as activists apply for trial release in NorthumberlandThe head of the government’s wildlife regulator has said he remains enthusiastic about more

Europe swelters under heatwave – in pictures

Authorities issue extreme heat, health and wildfire warnings with highest temperatures forecast in France, Italy, Portugal and Spain Continue reading more

Study reveals surge in illegal arachnid trade via Facebook in Philippines

In 2019, customs officers at a post office in the Philippine capital Manila unwrapped what looked like an ordinary parcel from Poland. Inside, they found 757 live tarantulas stuffed inside more

I was a big orca fan – but their skincare regime is giving me the ick | Emma Beddington

These supposedly serious cetaceans have been spotted massaging each other with kelp stalks. This is the sort of performative nonsense you’d expect from dolphinsI’ve thought for a while that it more

Tucked away in Brooklyn’s Calvert Vaux Park near Coney Island, one of the largest bee habitats in the city was once a rose garden, full of ornamental “Knock Out roses,” more

In Georgia, sheep on a solar farm is not a baaad idea

We're losing vital agricultural land. But is solar the main culprit? more

Salmon, tribal sovereignty, and energy collide as US abandons Resilient Columbia Basin Agreement

The move threatens treaty rights and salmon recovery as energy demands from AI and crypto surge. more

Illegal fishing and its consequences: the human toll of migration in Senegal

“I lost my sons, nephews, and grandson in this tragedy. I lost my older brother’s son. I can say that I lost almost ten relatives in this shipwreck. It is more

Did you know that there are huge caves full of weirdy bugs and ancient life right under the Nullarbor desert? | First Dog on the Moon

We simply don’t know even a fraction of what is in themSign up here to get an email whenever First Dog cartoons are publishedGet all your needs met at the more

UN expert urges criminalizing fossil fuel disinformation, banning lobbying

Rapporteur calls for defossilization of economies and urgent reparations to avert ‘catastrophic’ rights and climate harmsA leading UN expert is calling for criminal penalties against those peddling disinformation about the more

The cost of conservation without consent: Astrid Puentes on rights-based environmentalism

The story of Astrid Puentes Riaño is rooted in the soil of Colombia. Born in Bogotá to a family with campesino roots, her early memories are of mountain air, clean more

Seoul wrestles with how to handle invasion of ‘lovebugs’

Swarms in South Korean capital trigger heated debate over pest control as experts say rising temperatures partly to blameSeoul residents are grappling with an invasion of so-called “lovebugs” that have more

Nature, Published online: 30 June 2025; doi:10.1038/d41586-025-02034-7After a quarter of a century, the website remains an essential tool for navigating the genome and understanding its structure, function and clinical impact. more

Nature, Published online: 30 June 2025; doi:10.1038/d41586-025-02048-1Most sexually reproducing species have an even chromosome copy number, but the dog rose does not. What explains its unusual pattern of chromosome inheritance? more

Nature, Published online: 30 June 2025; doi:10.1038/d41586-025-02035-6Clinical geneticist Carmencita Padilla advocates for expanded access to neonatal screening in the Philippines and around the world. more

Nature, Published online: 30 June 2025; doi:10.1038/d41586-025-02088-7The US National Institutes of Health is still screening grants in process a judge ruled illegal last week. Plus, one researcher’s 40-year project to more

Nature, Published online: 30 June 2025; doi:10.1038/d41586-025-02047-2How being near to other orangutans affects the duration of sleep. more

Nature, Published online: 30 June 2025; doi:10.1038/d41586-025-01987-zDrugs currently being tested target complications associated with obesity such as heart disease, fatty liver disease and type 2 diabetes. more

Nature, Published online: 30 June 2025; doi:10.1038/d41586-025-01953-9The scale of funding cuts in the United States means that countless scientists will lose their jobs. It would be naive not to start more

Nature, Published online: 30 June 2025; doi:10.1038/d41586-025-01957-5The month’s sharpest science shots — selected by Nature’s photo team. more

Nature, Published online: 30 June 2025; doi:10.1038/d41586-025-02080-1The action comes as high-ranking US officials criticize top journals as ‘woke’ and ‘corrupt’. more

Nature, Published online: 30 June 2025; doi:10.1038/d41586-025-02085-wInflammation, thought to be a driver of age-related disease, does not worsen with age in some Indigenous communities. more

Nature, Published online: 30 June 2025; doi:10.1038/d41586-025-02033-8A marine ecologist’s 40-year struggle to understand how animals signal to one another. more

The Guardian view on Donald Trump’s China deal: rare earths pave the green road to militarisation | Editorial

Clean tech’s key minerals now drive western rearmament, reviving extractive ambition and exposing the toxic cost of dependenceIt’s an irony that the minerals needed to save the planet may help destroy more

Inside Utah’s PR campaign to seize public lands

Utah used actors, AI, stagecraft, and NDAs as it sought to sway public opinion and take control of 18.5 million acres of federal public land. more

ASHEBORO, N.C.—Boxy, gunmetal gray buildings loom over a labyrinth of ducts and tubes and catwalks, beyond which 100 train cars loll on their tracks. Smokestacks wait to exhale. This is more

Mikayla Raines, YouTuber who rescued unwanted foxes, died on June 20th, aged 30

In a world that treats foxes as either fur or folly, Mikayla Raines saw something else entirely: Sentience. Not the cartoonish cleverness of folklore, nor the soft luxury of fashion, more

Predatory snakehead fish poses invasive threat after sighting in Sri Lanka reservoir

COLOMBO — The Deduru Oya reservoir in northwestern Sri Lanka has long been a favorite fishing spot for angler Ishanka Dissanayaka. In mid-June, he returned to the reservoir for a more

The Trump administration claims roads in forests prevent wildfires. Researchers disagree.

Experts say repealing the "Roadless Rule" won't help stop fires, but it will help loggers. more

Commuter traffic stops for whales on Australia’s humpback highway

PORT STEPHENS, Australia (AP) — Sydney’s harbor becomes a humpback highway in winter as the whales migrate from feeding grounds in Antarctica to breeding areas off Australia’s coast. Whale watchers more

Thorny questions about who will pay for global climate action derailed a climate summit in Bonn, Germany, this week. more

After USAID cut, Ethiopia’s largest community conservation area aims for self-sufficiency

ADDIS ABABA — Local leaders at Ethiopia’s largest community conservation area are working to become financially self-sufficient and continue protecting land and wildlife independently, following the abrupt cut of funding more

Peter Seligmann steps down from Conservation International board after nearly four decades

Peter Seligmann, the founder of Conservation International (CI) and longtime Chair of its Board of Directors, has stepped down from the Board effective June 22, 2025, the organization announced. He more

Friendship benefits male and female mountain gorillas differently, study shows

Titus was just 4 years old when poachers killed his father and several other close adults in his group. Despite the violence, the young mountain gorilla developed an approach to more

Bangladesh plans new reserve for trapped elephants

Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. Bangladesh is preparing to add to its tally of 56 protected areas by more

Fire is both destruction and rebirth for Maya communities of Belize

PUNTA GORDA, Belize — Rosa Mis walks on a carpet of cracking dry leaves under the scorching sun of late May. Her green T-shirt blends in with the newly grown more

The Trump administration is outwardly hostile to clean energy sourced from solar and wind. But thanks to close ties to the fossil fuel industry and new technological breakthroughs, U.S. geothermal more

Flash floods in Pakistan kill 8 and 58 are rescued after deluge swept away dozens

PESHAWAR, Pakistan (AP) — Flash floods triggered by pre-monsoon rains swept away dozens of tourists in northwest Pakistan on Friday, killing at least eight people. The nationwide death toll from more

From New York to Paris to Beijing, urban trees are enjoying an extra-long growing season, a new study finds.Read more on E360 → more

Grizzly with checkered past swims miles to Canadian island – and into hot water

Residents on British Columbia island fiercely divided over whether to relocate, euthanize or ignore ‘Tex’ the bearMost visitors to Texada Island, a 30-mile sliver of land off the west coast more

A year after Helene, river guides in Appalachia are navigating a new world

The first tourist season since the storm reveals how much the river and livelihoods have changed. more

An analysis of 500 watersheds found levels of organic carbon, phosphorus, and other pollutants up to 103 times higher after a wildfire. more

A third of Pacific island nation applies for Australian climate change visa

More than 4,000 Tuvalu citizens have entered the ballot for a world-first climate visa to Australia. more

Nature, Published online: 27 June 2025; doi:10.1038/d41586-025-02082-zRocks on Hudson Bay, Canada are the only piece of Earth’s crust known to have survived from the planet’s earliest eon. Plus, sea slugs more

Nature, Published online: 27 June 2025; doi:10.1038/d41586-025-01958-4Nature talks to legal and other specialists about the cases and what to watch out for when transporting lab materials. more

Nature, Published online: 27 June 2025; doi:10.1038/d41586-025-02011-0Several groups hope to develop artificial-intelligence models that can predict how cells behave. more

Nature, Published online: 27 June 2025; doi:10.1038/d41586-025-02029-4Researcher used carbon dating to provide evidence that humans had arrived in Brazil much earlier than previously thought. more

Nature, Published online: 27 June 2025; doi:10.1038/d41586-025-02024-9Directives by the Trump administration are still being applied to grant materials despite court order. more

Nature, Published online: 27 June 2025; doi:10.1038/d41586-025-02009-8Results align with other efforts to count the number of people killed amid the ongoing conflict. more

Shoots of hope for Britain's cherished ash trees

Scientific evidence suggests ash trees are ‘fighting back’ against a deadly disease. more

BBC Inside Science

The science behind US attacks on Iran’s nuclear sites. more

Chicago residents risk daily lead exposure from toxic pipes. Replacing them will take decades.

The city with the most lead service lines in the country doesn’t plan to finish replacing them until 2076. more

Why many low-income households can’t afford this free home improvement program

Thousands of people “are falling through the cracks" because they can't make repairs to qualify for the Weatherization Assistance Program. more

A planned EV battery factory in Indonesia poses a grave threat to an uncontacted tribe, a watchdog group warns.Read more on E360 → more

Shipping is one of the world’s dirtiest industries – could this invention finally clean up cargo fleets?

Freighters emit more greenhouse gases than jets, but a tech startup believes a simple and effective technique can help the industry change course An industrial park alongside the River Lea more

Work begins to create artificial human DNA from scratch

Scientists start a controversial project to create the building blocks of human life, in what is thought to be a world first. more

Nature, Published online: 26 June 2025; doi:10.1038/d41586-025-01986-0Study highlights potential for sustainable synthesis of paracetamol. more

Nature, Published online: 26 June 2025; doi:10.1038/d41586-025-01993-1Kelp ‘loofahs’ might be first example of toolmaking by marine mammals. more

Nature, Published online: 26 June 2025; doi:10.1038/d41586-025-02010-1Scientists debate age of ancient Canadian crust as Inuit leaders work to preserve the location. more

Nature, Published online: 26 June 2025; doi:10.1038/d41586-025-02017-8Research across science and medicine will probably shrink at one of the world’s most elite universities amid a new political reality. more

Nature, Published online: 26 June 2025; doi:10.1038/d41586-025-02000-3Thimerosal is found in only a small fraction of US vaccine doses but has long been viewed with suspicion by the anti-vaccination community. more

Nature, Published online: 26 June 2025; doi:10.1038/d41586-025-01938-8US biomedical agency’s public-access policy kicks in on 1 July. Nature talks to specialists about how to comply. more

Nature, Published online: 26 June 2025; doi:10.1038/d41586-025-01816-3Astronomer Willice Obonyo describes how scholarship programmes seeded a fresh crop of radioastronomers in Africa. more

Nature, Published online: 26 June 2025; doi:10.1038/s41586-025-09282-7Addendum: Unravelling cysteine-deficiency-associated rapid weight loss more

Nature, Published online: 26 June 2025; doi:10.1038/d41586-025-02025-8Researchers have shown how Stone Age people might have canoed from Taiwan to Japan more than 30,000 years ago by doing it themselves. Plus, more

World's oldest boomerang doesn't actually come back

The 40,000-year-old boomerang was made with an astonishing level of skill and ingenuity, say scientists. more

Mirrors in space and underwater curtains: can technology buy us enough time to save the Arctic ice caps?

A conference in Cambridge this week will explore a raft of geoengineering ideas to cool the region down – and attempt to address the fears of those who argue the more

"A single word like 'X̱maay' contains generations of climate knowledge, laws, and cultural practices." more

India sends its first astronaut into space in 41 years

Group Captain Shubhanshu Shukla has become only the second Indian to travel to space. more

Nairobi’s lions are almost encircled by the city. A Maasai community offers a key corridor out

Maasai pastoralists living by the national park in Kenya’s capital are helping wildlife with a crucial migratory route through their land – at great risk to their cherished cattleNairobi national more

More people buying electric cars and heat pumps than ever before

But the Climate Change Committee warns there's still a long way to go for the UK to reach net zero by 2050. more

Nature, Published online: 25 June 2025; doi:10.1038/s41586-025-08950-yThis Review examines recently gained insights into the roles of ESCRT complexes in viral infection, immunity, cancer and neurological disease. more

Nature, Published online: 25 June 2025; doi:10.1038/s41586-025-08972-6An analysis of research papers and citing patents indicates the extensive ties between computer-vision research and surveillance. more

Nature, Published online: 25 June 2025; doi:10.1038/s41586-025-09170-0An approach that learns models of robots from video capture can predict the 3D motion outcomes of motor commands, enabling accurate control of a more

Nature, Published online: 25 June 2025; doi:10.1038/s41586-025-09210-9Certain antimetabolites used to treat cancer are more neurotoxic than others, and it is now shown that this is due to their greater tendency more

Nature, Published online: 25 June 2025; doi:10.1038/s41586-025-09197-3A high-sensitivity, broadband, transient, full-Stokes spectroscopy setup is demonstrated, which can detect quickly varying small signals from chiral emitters. more

Nature, Published online: 25 June 2025; doi:10.1038/s41586-025-09138-0A dysprosium amide–alkene complex shows soft magnetic hysteresis loops up to 100 kelvin, arising from the high charge density of the amide ligands and the more

Nature, Published online: 25 June 2025; doi:10.1038/d41586-025-02008-9Experiment shows how people in dugout canoes could have crossed the treacherous straits between Taiwan and the Ryukyu Islands. more

Nature, Published online: 25 June 2025; doi:10.1038/s41586-025-09165-xAn RNA codon-expansion strategy enables incorporation of non-canonical amino acids into proteins of interest orthogonally to existing methods by inserting pseudouridine codons into specific more

Nature, Published online: 25 June 2025; doi:10.1038/s41586-025-09157-xCMOS-based circuits can be integrated with silicon-based spin qubits and can be controlled at milli-kelvin temperatures, which can potentially help scale up these systems. more

Nature, Published online: 25 June 2025; doi:10.1038/s41586-025-09143-3The coherent bunching of anyons and their dissociation was observed in an interference experiment. more

Nature, Published online: 25 June 2025; doi:10.1038/d41586-025-01936-wThe majority of papers and patents in a subfield of AI enable surveillance, according to a new study. more

Nature, Published online: 25 June 2025; doi:10.1038/s41586-025-09199-1A population code for the dynamics of choice formation in the primate premotor cortex is revealed, with diverse single-neuron tuning to a shared decision more

Nature, Published online: 25 June 2025; doi:10.1038/s41586-025-09080-1The Nature Relationship Index offers a new way to measure and engage human aspirations to shape a better future for people and all life more

Nature, Published online: 25 June 2025; doi:10.1038/s41586-025-09139-zThe emergence of universal collective behaviour is demonstrated through collisions of electron droplets containing up to five particles, which exhibit strong all-body correlations characteristic more

Nature, Published online: 25 June 2025; doi:10.1038/s41586-025-09176-8A study reports the development of a method to trace intercellular transfer of mitochondria, and demonstrates that cancer cells that receive mitochondria from neurons more

Nature, Published online: 25 June 2025; doi:10.1038/d41586-025-01925-zIf companies do step in to support research, will they publish the results, or keep them close to their chest? 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.

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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