Four critically-endangered Western Santa Cruz Galapagos tortoise babies made their debut at the Philadelphia Zoo on Wednesday, April 23.

After a devastating wildfire, endangered Mount Graham red squirrel populations recovered through joint efforts from four ...

PROVIDENCE – The new penguin exhibit at Roger Williams Park Zoo will open Memorial Day weekend, the zoo announced April 23. Twelve "quirky, sun-loving" Humboldt penguins will live at the new exhibit, ...

Billy, 40, and Tina, 59, will be moved to the Elephant Experience and Preserve at the Tulsa Zoo. Officials say they made the ...

The Phoenix Zoo hopes to attract more tourists with the opening of a new $5.4 million Big Cats of Arizona exhibit.