Laguna la Cruz on the Gulf of California coast in Sonora, Mexico, is an important stopover point for many migratory species.

With sharp catlike teeth and a doglike body, ancient carnivores called hyaenodonts were once at the top of the food chain, ...

As the weather changes and spring approaches, Arizona residents may see more animals, including Gila monsters, snakes and more. Here's what to know.

Nature is filled with creatures that can do the impossible—control their own biology! From jellyfish that can reverse aging ...

As global temperatures rise, some animals are evolving faster than ever to survive. From heat-resistant lizards to birds ...

Armed with a slingshot, Taiwanese bounty hunter Wu Cheng-hua bends sideways and aims his lethal weapon up at a green iguana, ...

From amphibians to reptiles to all the creatures living under the sea, Kelly Geck takes care of them all at the Cook Museum of Natural Science, and the Ohio native said she finds the ecosystem in ...