Endangered Species

This second hatchling is even more notable for the emergency efforts that the animal keepers took to keep it alive.

UPDATE: Second Critically Endangered Tortoise Hatches from a Cracked Egg

To get the critically endangered Madagascar spider tortoises to breed successfully took both tenacity and a whole lot of luck

European Bison (Bison bonasus) at Prioksko-Terrasnyy Reserve in Russia

Europe Once Had Bison, and now They're Making a Comeback

Just like their American cousins, the bison needed help after their numbers were decimated by habitat loss and hunting

A Group of Endangered Orcas Has Gotten Busy Making Babies

Southern Resident killer whales have been on the decline, but new babies bring hope for the future

The Population of a Rare Leopard Has Nearly Doubled

A new census shows that there are now at least 57 elusive Amur leopards in Russia

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Mark World Pangolin Day With a New Video About the Quirky Creatures

Awareness about this animal underdog is climbing, yet an estimated 10,000 pangolins still fell victim to the illegal wildlife trade last year

Finally, the First Fish Ever Is Taken Off the Endangered Species List

The recovery of a tiny fish signals good news for area waterways and proof that, when heeded, protective measures can make a difference

These Dolphins Mourn Their Dead

A new study looks into a sad ritual at sea

The skittish cat was spotted in Uganda's Kibale National Park.

Rare Cat Caught on Camera…Attacking a Monkey

Africa’s most elusive wild cat makes a rare daytime appearance

Monarch Butterflies, Sierra Chincua Butterfly Sanctuary, Angangueo, Michoacan, Mexico

Where to See Thousands of Monarch Butterflies

The species is being reviewed for potential addition to the Endangered Species list. Can tourism help save the butterfly?

A monarch butterfly sits on a Buddleia Butterfly Bush.

Monarchs May Soon Land on the Endangered Species List

Scientists fear that the butterfly’s population will continue to drop due to the loss of the its food source

Where the Buffalo Roam: Illinois

American bison are back in Illinois for the first time in 200 years

Only 5 Northern White Rhinos remain. A powerful image of three of them under guard by Kate Brooks.

There Are Probably Just Five Northern White Rhinos Left

The death of a captive rhino at the San Diego Zoo brings the species closer to imminent extinction

Conserving Tigers Could Hurt Leopards

When one predator returns, another can be displaced

A bleached coral reef

Listen to the Sounds of a Dying Coral Reef

Healthy coral reefs produce a medley of sounds that ocean creatures use as homing beacons

A humpback whale in waters off southern Oman.

Humpback Whales in the Arabian Sea Have Been Isolated for 70,000 Years

Conservationists want this particular population of humpbacks to be classified as critically endangered

“Hatcher,” a large Triceratops, greets visitors exploring the National Museum of Natural History’s new exhibition, “The Last American Dinosaurs: Discovering a Lost World.”

What Can the Dinosaurs' Final Years Tell Us About the Biodiversity Crisis Today?

Failed ecosystems led to the demise of the dinosaurs. Today, plant and animal species are disappearing at exponential rates.

Pacific bluefin tuna populations have declined by up to 33 percent over the last 20 years.

300+ Species Just Joined the List of Threatened Plants And Animals

Overfishing, overhunting and habitat loss drove many of the new additions

Around 1,400 chimps might lose their home in Congo.

How a Misdrawn Map Put 1,400 Chimps and a Rare Plant in Peril

Miners and farmers are moving into a protected forest in Congo thanks in part to an administrative blooper

An Espanola Galapagos giant tortoise under an arboreal prickly pear cactus. The cactus is a vital part of the tortoise's diet, but the surrounding woody plants - a leftover problem caused by goats - prevent the cactuses from regrowing.

Giant Tortoises Have Made a Comeback From 15 to 1,000

Española giant tortoises have been reintroduced to Galapagos National Park and are breeding on their own

In Australia, Curiosity® Really Will Kill Feral Cats

Don't feel too bad for the cats, though: they kill millions of birds and little mammals every day

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