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Ecology

Side-by-side renderings of the marsupial saber-tooth Thylacosmilus atrox (left) and the saber-tooth cat Smilodon fatalis (right).

New Research

This Marsupial Sabertooth Was No Killer Cat

Long fangs caused many to assume Thylacosmilus was a slashing predator, but new research suggests it was a scavenger with a preference for leftovers

All grizzly bears in the United States are considered "threatened" under the Endangered Species Act and cannot be hunted, a federal appeals court ruled this month.

Protections for Grizzlies in the Greater Yellowstone Area Upheld in Court

For over a decade, the protected status of grizzly bears under the Endangered Species Act has been under fire

For the first time, an ultra-black skin color or pigmentation that protects 16 varieties of deep-sea fishes has been documented.

Elusive, Ultra-Black Fish Are Cloaked to Survive in the Deep Ocean

Special pigment cells in deep-sea fish may provide clues to cancer treatment and stealthy new materials

Black-tailed prairie dogs are prolific diggers and construct complex burrow systems.

Smithsonian Voices

Why Prairie Dogs Are Ecological Heroes

Although many people view prairie dogs as pests, ecologists absolutely dig them

A European bison in the Netherlands, which has also sought to reintroduce the herbivores.

Wild Bison to Roam Britain for First Time in Thousands of Years

A small herd of four European bison will be released into a woodland in southeastern England in spring 2022

Canada's white-throated sparrows have remixed their classic song by trading a series of triplets for doublets at the end.

New Research

Canada’s White-Throated Sparrows Are Changing Their Tune

The new song is catching on and spreading across the country at an unprecedented speed

Ducks might be responsible for ferrying fish eggs to new bodies of water, according to new research.

New Research

Fish Eggs Can Survive a Journey Through Both Ends of a Duck

A new study finds some eggs remain viable even after being eaten and pooped out by waterfowl

Most large wildlife fatalities caused by car crashes in Maine are deer and moose.

Roadkill Reduced During Lockdowns, but Traffic Is Increasing Again

California, Idaho and Maine saw considerably fewer roadkill deaths in the first few weeks of stay-at-home orders

A jackal in Yarkon Park, Tel Aviv, Israel.

Scientists Propose a New Name for Nature in the Time of COVID-19: The ‘Anthropause’

Human travel came to a halt during COVID-19, and scientists argue that this worldwide ‘pause’ presents a rare opportunity to study our impact on animals

Researchers tested their pollen-carrying bubbles on lily, azalea and campanula flowers (shown).

New Research

Soap Bubbles Can Pollinate Flowers, but Can They Replace Bees?

New research shows that carefully calibrated soap bubbles cause pear trees to bear fruit

Monitor local animal populations, identify plants, transcribe women astronomers' notes, bird-watch and more.

Education During Coronavirus

Seventy-Five Scientific Research Projects You Can Contribute to Online

From astrophysicists to entomologists, many researchers need the help of citizen scientists to sift through immense data collections

An aggregation of roughly 64,000 green sea turtles at Raine Island in Australia.

Drone Footage Shows Thousands of Nesting Sea Turtles

The roughly 64,000 green sea turtles were photographed off the Great Barrier Reef in Australia at Raine Island, the turtle’s largest breeding ground

Dr. Frederieke Kroon looking at a crown-of-thorns starfish on the Great Barrier Reef.

New Research

What Eats the Crown-of-Thorns Starfish? The Evidence Is in the Poop

The sea creatures are the second-biggest threat to the Great Barrier Reef after tropical cyclones

There are only around 80 Sumatran rhinos (Dicerorhinus sumatrensis) left on Earth. In their native northern Sumatra, Indonesia, they are being pushed towards extinction by habitat loss and poaching.

Already Unprecedented Rate of Wildlife Extinctions Is Accelerating

New research suggests roughly 500 species are likely to go extinct in the next two decades

These ‘Elvis Worms’ Shimmer and Sparkle—and Fight Rough

New research describes four species of iridescent deep-sea creatures that sparkle like bedazzled Elvis Presley jumpsuits

A new study has mapped green algae blooms, like the one pictured here, on the Antarctic Peninsula.

Algae Blooms Turn Antarctica’s Ice Green

Scientists predict that the organisms’ presence will increase as global temperatures increase

The glass frog's translucent stomach skin offers a window into its internal organs. New research finds this odd seeming trait may help the frogs evade predators.

Scientists Discover the Reason Behind the Glass Frog’s Translucent Skin

Glass-like skin helps break up the frog’s outline and matches the frog’s brightness to its leafy perch, making it harder for predators to spot

Otters get fidgety when they're hungry.

New Research

Otters ‘Juggle,’ but the Behavior’s Function Remains Mysterious

The animals seem to fidget more when they are hungry

Short-eared dogs are the only canines that live in the Amazon rainforest.

New Research

The Amazon’s ‘Ghost Dogs’ Face 30 Percent Habitat Loss

The solitary species is hard to spot on camera, and they’re the only canine that lives in the Amazon rainforest

A mule deer walks down the road in Yosemite Valley

With Humans Away, Animals in National Parks Are Having a Ball

Coyotes, bears and more are enjoying areas usually reserved for crowds of human visitors

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