Many of us know snakes are ectothermic reptiles that regulate their body temperature behaviorally by using shade, burrows, warm rocks, and even metabolic heat from digestion. But not everyone is aware ...

Tessa, a giraffe at the Cincinnati Zoo, is pregnant with her fifth calf. The baby giraffe will join the zoo's tower of four in October.

Scientists have newly described three extraordinary species of tree toad that leapfrog over the egg-to-tadpole stage. The females give birth on land to dozens of toadlets, each measuring just a few ...