The new research is the first to look back at early mammals in full color. Using advanced fossil imaging methods and a ...

Only a handful of mammals can regrow teeth multiple times, compared to the 50,000 species of reptiles and fish. Take geckos, for example, who will replace all 100 teeth, or so, every 3 to 4 months.

Their metabolism depends on the temperature of their environment. Unlike birds and mammals, reptiles do not maintain a constant internal body temperature. Without fur or feathers for insulation ...

The teeth of horses and zebras look alike. The ear bones of mammals were once the jaws of prehistoric reptiles. And so on. Despite these differences, all mammals share four traits that are shown ...

Other herps are the prey, like frogs who serve as a food source for many species of birds, fish, mammals and reptiles. In addition, herps are valuable indicators of environmental health. Amphibians, ...

A collection of KS1 Science videos showing some interesting facts about birds, reptiles and mammals. These clips can be used in the classroom to explore how these animals live, hunt and adapt in ...

One million species globally are at risk of extinction in the next few decades, including 27 percent of the world’s mammals, 41 percent of amphibians, 37 percent of sharks and rays, and 21 percent of ...

Turtles are classified as amniotes, along with other reptiles (including birds) and mammals. Like other amniotes, turtles breathe air and do not lay eggs underwater, although many species live in ...

Texas A&M AgriLife experts share insights on snake behavior, tips to prevent unnecessary fear of snakes and reduce the risk of a bite.