Lion's Gate Sanctuary in Colorado euthanized all of its exotic animals, including lions, tigers and bears, after request to relocate was denied by county
The world's last male northern white rhino has joined the Tinder dating app as wildlife experts make a last-chance breeding effort to keep his species alive.
San Diego Zoo ambassador explains efforts to protect endangered and at risk species
A rare crocodile was killed by a vehicle while walking on a Florida highway early Wednesday morning.
The rusty patched bumblebee is the first native bee to become an endangered species in the United States.
It's a question that has bedeviled kindergartners, and now apparently PhDs have the answer: Why do giant pandas have spots?
Lemurs are considered the world's most endangered mammal, but a team of researchers have devised a system called LemurFaceID, which uses facial-recognition software to spot lemurs ...
One the National Zoo's biggest stars is our Power Player of the Week
More from our behind the scenes at the Smithsonian's National Zoo as they prepare for Bao Bao, the giant panda's trip to China
A critically endangered species of antelope is dying by the thousands from a deadly infectious disease outbreak in Mongolia, and scientists fear there could be "catastrophic conseq...