28 October 2014, 02:05 PM ET
Once down to only 15 animals, giant tortoises on Espãnola, a tiny Galápagos island, now number about 1,000, making the reptile one of conservation's greatest success stories.
21 October 2014, 09:06 PM ET
Their horns are made of the same stuff as human fingernails!
06 October 2014, 09:55 AM ET
Whooping cranes raised by humans are turning out to be bad parents, and scientists are testing a new method to boost the birds' numbers in the wild.
04 October 2014, 03:30 AM ET
The loss of Earth's animals, ring-shaped clouds and Nature's solar tech — these are just a few of this week's coolest images in Science.
03 October 2014, 08:18 PM ET
There are nine subspecies of this largest member of the cat family, all of which are endangered.
03 October 2014, 02:27 AM ET
With more than 50 percent of wildlife disappearing in the last 40 years, something needs to change.
26 September 2014, 01:13 AM ET
Where they live, what they eat and conservation measures.
24 September 2014, 07:09 PM ET
An amazing video from the Florida Keys shows a curious domestic cat nearly become a midnight snack for an American alligator.
19 September 2014, 07:36 AM ET
The body of a 100-year-old Pinta Island Tortoise, dubbed Loneseome George, has been preserved and is now on display at the American Museum of Natural History.
12 September 2014, 03:28 PM ET
Good news for shark lovers: This weekend, new international laws will go into effect to strengthen protections for five shark species that are threatened by overfishing.
09 September 2014, 04:18 PM ET
The Devils Hole pupfish, an inch-long fish that sparked a Supreme Court battle, could go extinct in less than 30 years, a new modeling study concludes.
08 September 2014, 01:07 PM ET
Species are dying off thousands of times faster than they are being created, according to new research that highlights the planet's looming biodiversity crisis. The study also suggests humans are on the verge of causing a sixth mass extinction on Earth.
28 August 2014, 05:04 PM ET
A tenfold increase in protected coral species was announced Wednesday, with 20 new corals added to the threatened species list.
22 August 2014, 10:52 AM ET
Renowned scientist and conservationist Patricia Wright battles to save one of the world’s most endangered primates.
20 August 2014, 04:38 PM ET
Award-winning scientist and conservationist Patricia Wright talks about how she came to love lemurs and how important they are to save.
18 August 2014, 12:43 PM ET
Summer speed limits could reduce roadkill deaths for the rare Hine's emerald dragonfly, an endangered species.
14 August 2014, 05:40 PM ET
China welcomed the birth of the world's first known surviving panda triplets, a rare event for the endangered, bamboo-loving bears.
14 August 2014, 05:15 PM ET
A Chinese zoo shared photos of a rare trio of giant panda cubs. The pictures show the triplets resting in an incubator while their mother recovers from the birth.
13 August 2014, 12:20 PM ET
South Africa will evacuate hundreds of rhinos to reduce the impact of poaching on the population, according to a government minister.
29 July 2014, 12:08 PM ET
They've been described as walking artichokes and the most trafficked mammals in the world. Now, conservationists warn that pangolins, or scaly anteaters, could be eaten out of existence if illegal hunting and poaching continue.
29 July 2014, 10:59 AM ET
Conservationists warn that all eight species of pangolins, or scaly anteaters, may be eaten to extinction if illegal hunting and poaching continues.
23 July 2014, 02:03 PM ET
The feeding grounds of blue whales along the U.S. West Coast overlap dangerously with shipping lanes, placing the behemoths in danger of collisions with ships. This finding could help prevent human threats to these endangered titans, scientists added.
23 July 2014, 02:00 PM ET
Researchers have tagged more than 100 blue whales off the California Coast, finding the behemoths feed around major shipping lanes.
21 July 2014, 11:43 AM ET
A river teeming with spawning salmon lures grizzly bears from hundreds of miles away, new research suggests.
16 July 2014, 02:00 PM ET
The Indus River dolphin range has declined dramatically as a result of dams that have fragmented their native habitat, new research finds.
15 July 2014, 02:13 PM ET
This summer, Hawaii's endangered wildlife will be on candid camera, as two kinds of drones survey the numbers and whereabouts of animals in their natural habitats.
18 June 2014, 06:44 PM ET
After returning to the lower Colorado River in 2012 after a 22-year absence, the endangered razorback sucker fish is now spawning in Grand Canyon National Park.
29 May 2014, 02:02 PM ET
Species are going extinct at least 1,000 times faster than they would be if humans didn't exist, new research finds. However, scientists say that technology and citizen-science tools can turn this biodiversity crisis around.
29 May 2014, 02:00 PM ET
New technology allows researchers to track biodiversity and endangered species like never before. New maps show hotspots of biodiversity around the globe, showing areas that would benefit from targeted conservation.
16 May 2014, 01:51 AM ET
The ongoing collapse of shark populations has already had far-reaching effects on marine ecosystems. To arrest this trend we need scientific data that effectively inform conservation management. But are we focusing our research effort in the right areas?
14 May 2014, 01:28 AM ET
Canada's trade in polar bear skins is driving international concern, and scrutiny.
28 April 2014, 10:12 AM ET
Bison went extinct in Europe nearly 100 years ago, but conservationists are taking small steps to bring the animals back into the wild.
19 April 2014, 02:03 AM ET
Sharks and rays are some of the world’s most threatened animals, with a quarter of all species at risk of extinction.
10 March 2014, 01:46 AM ET
Sea cucumbers are the less glamorous cousins of starfish and sea urchins, occurring in all of the major oceans and seas. As a delicacy in many Asian cultures, they are appreciated for their soft texture, dietary and medicinal properties.
04 March 2014, 07:04 PM ET
Young sea turtles don't always follow the path that scientists expected the animals to travel, with many dropping out of ocean currents into the still waters of the Sargasso Sea.
28 February 2014, 01:34 PM ET
A surge in popularity of horse ownership in China's Sichuan Province threatened the Giant Panda. Only 1,600 pandas live in the wild.