April 22, 2017, 2:31 p.m. by Starre Vartan
This long-running study shows how top carnivores profoundly affect their local ecosystems.
If animal testing doesn't translate to humans, should we keep doing it the same way?
April 10, 2017, 1:28 p.m. by Mary Jo DiLonardo
Some researchers say it's time to look at lab animals as patients, not tools.
Newborn mountain lion is the poster kitten for wildlife corridors
April 6, 2017, 3:35 p.m. by Jaymi Heimbuch
The new kitten is cause for celebration and concern as it is born from inbreeding mountain lions.
This rare wild dog species hasn't been photographed in more than 50 years
April 5, 2017, 8:23 a.m. by Jaymi Heimbuch
The New Guinea highland wild dog has been caught on camera, including adults and pups.
Some rare good news for elephants: The price of ivory is plummeting
April 3, 2017, 11:28 a.m. by Jaymi Heimbuch
As wild populations of elephants are decimated by poachers, there may be hope as the ivory trade boom slows in China.
Are these massive tunnels in South America the work of giant sloths?
March 31, 2017, 11:01 a.m. by Angela Nelson
So-called paleoburrows were hundreds of feet long with claw marks on the walls.