A pioneering campaign to vaccinate endangered monkeys in Brazil against yellow fever may help save the beloved golden lion tamarins from extinction

The Dallas Zoo has been struck by a string of suspicious incidents in recent weeks that are under criminal investigation.

Idaho Fish and Game officials are hunting for answers about why coyotes have been chasing skiers at a resort, even biting one person.

Authorities in Dallas are asking for help in locating two missing tamarin monkeys from the Dallas Zoo

South African animal welfare officials have successfully sedated and captured a tiger that was spotted roaming a residential area to the east of the capital Johannesburg

Another mountain lion near Los Angeles has died, over a month after P-22, a beloved local mountain lion who spurred conservation efforts was euthanized.

Snowflake the polar bear is very excited about the fresh snowfall at the Pittsburgh Zoo and Aquarium.

The Biden administration has moved to protect the pristine Boundary Waters Canoe Area Wilderness in northeastern Minnesota from future mining

After six months developing in its mother's pouch, a rare tree kangaroo joey is beginning to peek outside at its home in the Chester Zoo.

Newborn giraffe calf soaks up the motherly love after joining the herd at Sacramento Zoo.

Bruno, a nearly three-month-old gorilla born at the Fort Worth Zoo in Texas, is seen standing up for the first time—with a helping hand from mom.

A large elephant seal in Australia is causing a stir, closing off a pier to locals, tourists and preventing a dog owner from taking her dogs on their usual walking path.

A state lawmaker in Oregon is using thousands of pages of redacted documents he sought for more than a year to launch legislation demanding more accountability and oversight of a primate research facility with a long history of complaints

A bill that would ban the sale of kangaroo parts has been introduced in the Oregon Legislature

A group of boaters rescued a sea turtle entangled off the coast of Jalisco, Mexico by cutting away the tightly wound netting and releasing it back into the ocean.

The U.S. government has denied a request from a group of environmental organizations to immediately apply proposed ship-speed restrictions in an effort to save a vanishing species of whale

An Australian family received an unexpected visitor in their backyard: a thirsty koala nestled up next to its decorative doppelgänger.

An enormous seal was spotted roaming around an Australian beach town, visiting a local gas station and surprising bystanders, before returning to the sea.

Officials in Alaska say a mother and her 1-year-old boy were killed by a polar bear this week as she walked about 150 yards from a school to a health clinic

A polar bear attack that killed a mother and her 1-year-old son in far western Alaska this week underscores the risks of living alongside the world's largest land carnivores and has renewed interest in prevention programs known as bear patrols

Guinness World Records has named Spike, a 23-year-old dog, the oldest living dog.

TRY, TRY AGAIN: A cute baby elephant stumbled and stepped back-and-forth across a road at a South African park as it practiced its charging skills.

A polar bear chased down and killed a woman and her 1-year-old son when it entered a remote village in Alaska before it was shot by a resident.

Federal environmental and energy officials say there is no evidence that work done by the offshore wind power industry is killing whales in the northeastern U.S. On Wednesday, the National Oceanographic and Atmospheric Administration, and the Bureau of...

A polar bear killed a 24-year-old woman and her 1-year-old son in an Alaskan village Tuesday before being shot.

The polar bear was killed by a local resident as it attacked the victims, according to authorities.

Alaska State Troopers say a polar bear has attacked and killed two people in a remote western Alaska village

A person waiting for their order at a McDonald's drive-thru was joined by an unexpected fellow customer: a small horse waiting patiently in the back seat of a car for ice cream.

There have been whale deaths near site preparation work for offshore wind farms.

Humpback whales breached the waters near a North Carolina lighthouse—delighting onlookers boating in the area.

The Marine Mammal Stranding Center released preliminary results of a necropsy.

A similar opening was found cut at a habitat for small monkeys, police said.

The Dallas Zoo found a clouded leopard that apparently escaped from its enclosure.

A leopard on the loose at a zoo in Texas has been found safely. Now investigators are launching a criminal investigation into how the cat got loose.

A giant 21-foot killer whale has died after beaching itself early Wednesday morning at the south end of Jungle Hut beach in Florida.

An endangered Mexican gray wolf has roamed beyond the species’ recovery area.

This koala out for its morning stroll had to be escorted off the road after it created a traffic jam.

A sleepy bear was spotted hibernating under a Connecticut family's deck.

A man’s evening walk didn’t go as planned after he was chased up a tree during an encounter with a bull moose in Canada.

Scientists are examining the corpse of an endangered whale that washed up on a Mississippi Gulf Coast beach

The National Park Service is proposing a rule that would prohibit bear baiting in national preserves in Alaska

A herd of elk was seen trotting through a field in Hillsboro, Oregon, set against the stunning backdrop of a sunrise.

“I’ve never seen anything like this,” the tour boat captain said of capturing the once-in-a-lifetime moment off the coast of Dana Point, California.

About 70 species of birds have lost at least half of their populations in the past 50 years.

The majority of bird species in the U.S. face a grim future in coming decades if environmental efforts are not implemented on a larger scale.

Jillian Smith of Norwalk, Ohio, shared the image last month of her son Peyton and their English Mastiff, Dash, onto Facebook where it's been shared 43,000 times.

Thirteen bison were killed or had to be euthanized after they were struck by a semi-truck involved in an accident with two other vehicles on a dark Montana highway just outside Yellowstone National Park

After spending 56 hours without power, a Buffalo couple ventured outside and found many birds stuck in a thick layer of ice encasing the waterfront of LaSalle Park.

Snowbirds are a common sight in Southern California in wintertime — except when they’re actually a bird

Buffalo residents rescued 16 birds stuck in ice along LaSalle Park's waterfront after a historic winter storm swept through the region.