Some rhinos and giraffes could find room to roam in Sahuarita under a plan by the Phoenix Zoo for a wild animal conservation ...

A new study has analyzed mummified remains of cheetahs in Saudi Arabia caves. The results could help reintroduce cheetahs to the Arabian Peninsula, researchers say.

Invasive species are imported as livestock, pets and attractions in zoos. Some hitch rides on plants, on the bottom of a boot, in the ballast of ships. Then they wreak havoc. Here's how we're ...

ESSENTIALS: “Chapter 13,” “Lycanthrope,” “No, It Isn’t” ...