How do they do it? Chemistry helps! The most important adaptation is how animals regulate their body temperature. Animals can be either warm-blooded or cold-blooded. Warm-blooded animals, which are ...

When sick, Nile tilapia seek warmer water. That behavioral fever triggers a specialized immune response, hinting the connection evolved long ago.

Yet, if that's true, why aren't birds cold-blooded like most modern-day reptiles? The answer is straightforward: Most dinosaurs were probably warm-blooded, too. Birds are descended from a diverse ...

Alligators sleep, but do they hibernate? Discover the reptilian equivalent of hibernation in this well-researched post.

The federal Animal Welfare Act (AWA) was amended in 1970 to include all warm-blooded animals who are commonly experimented upon. However, the term “animals,” for purposes of the protections delineated ...

It disappeared about 3.6 million years ago. Previously, scientists thought the megatooth might have been warm-blooded, but they had no evidence to support this idea until a study was published in ...