A grey wolf in Yellowstone National Park.

Top Carnivores Help Shape Nearly Every Aspect of Their Environment

From controlling other animals' numbers to affecting carbon storage, the predators' vital roles in ecosystems justify their conservation, scientists say

A new species of tapir, a herbivorous mammal, was discovered in the Amazon earlier this month.

A Recap of Our Five Favorite New Species of 2013

An owl, a cat, a dolphin, and of course the olinguito, are among this year's biggest new species finds

The London Zoo’s Brian Zimmerman looks for a cichlid in Madagascar.

Doomed Species May Be Saved—A Global Search Locates a Female

With this little fish facing down extinction, a global hunt turned up a few remaining wild individuals

There Is a Way to Make Lion Hunting Good for Lions

A contentious issue may have a bright side

The new tapir, Tapirus kabomani.

Scientists Discover a New Species of Tapir; Locals Say, “We Told You!”

The new tapir is the smallest of the world's five known species but it still counts as one of the largest mammals found in South America

Cut Down a Forest, Let It Grow Back, And Even 30 Years Later It’s Not the Same

In the tropics, secondary forests are often "ephemeral," succumbing to deforestation every 10 years or so and thus never able to fully recover

Desert Tortoises May Be Starving, Dehydrating And Dying Because of Climate Change

Those that hadn't succumbed to death by drought appeared to have been predated on by starving coyotes, which usually eat mammals

New York Decides Shooting Snowy Owls Is Not the Best Choice, After All

Snowy owls may congregate at airports because snowy tarmacs resemble the animals' natural habitat, the Arctic tundra

Guadalupe White Shark

Great White Sharks Are Being Killed Before They Can Become Truly Gigantic

Sharks aren't shrinking, they're just being hunted and inadvertently killed by fishing nets so often that they're no longer living long enough to grow up

The writer ventured into the deep jungles of Colombia.

The Lost Tribes of the Amazon

Often described as “uncontacted,” isolated groups living deep in the South American forest resist the ways of the modern world—at least for now

Considered a mere scavenger that robbed traps and ransacked cabins, the wolverine has recently earned respect and scientific attention.

The Way of the Wolverine

After all but disappearing, the mammals are again being sighted in Washington's Cascade Range

Whalers pursued sperm whales for the rich oil in their oversized heads. Now biologists are on the tail of these deep-diving, long-lived, sociable and mysterious sea creatures.

The Sperm Whale's Deadly Call

Scientists have discovered that the massive mammal uses elaborate buzzes, clicks and squeaks that spell doom for the animal's prey

To prevent young birds from imprinting on humans, flock manager Jane Chandler dons a white gown and a mask. She uses a puppet to teach them survival skills.

A Call to Save the Whooping Crane

Smithsonian researchers join an international effort to bring the five-foot-tall bird back from the brink of extinction

Resembling a protective amulet, the Tibetan bunting charms Tashi Zangpo and the other monks he has trained.

A Buddhist Monk Saves One of the World's Rarest Birds

High in the Himalayas, the Tibetan bunting is getting help from a very special friend

Given a safe passage, jaguars will wander hundreds of miles to breed, even swimming across the Panama Canal.

The Jaguar Freeway

A bold plan for wildlife corridors that connect populations from Mexico to Argentina could mean the big cat's salvation

About one-third of all corals are in threat of extinction, and some coral experts say that we could lose reefs as we know them by 2050.

Saving Coral…Through Sperm Banks?

Marine biologist Mary Hagedorn has learned to freeze and reanimate coral cells

Every day California sea otters spend 10 to 12 hours hunting and consume nearly a third of their body weight.

Otters: The Picky Eaters of the Pacific

Could the California sea otters' peculiar dietary habits be impeding their resurgence?

Bob Rosenfield holds a pair of Cooper’s hawks in a city park in Victoria, Canada. The female, in the foreground, is a third again as large as her mate.

The Hawks in Your Backyard

Biologists scale city trees to bag a surprisingly urban species, the Cooper's Hawk

In the worst animal epidemic in years, white-nose syndrome threatens to wipe out some bat species.

What Is Killing the Bats?

Can scientists stop white-nose syndrome, a new disease that is killing bats in catastrophic numbers?

North and South Korea are collaborating to save one of the world's most endangered bird species, red-crowned cranes.

The DMZ's Thriving Resident: The Crane

Rare cranes have flourished in the world's unlikeliest sanctuary, the heavily mined demilitarized zone between North and South Korea

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