From scales to feathers to fur, vertebrates clothe themselves in a ... of Geneva biologist Michel Milinkovitch visited an Italian animal fair, found scaleless, “naked” bearded dragons for ...

There are lots of vertebrates in the animal kingdom. Slide 1 of 5, , Mammals: Lions, humans and dolphins Mammals breathe through their lungs, are warm-blooded, give birth to live babies and have ...

Vertebrates are thought to have emerged during the Cambrian explosion around 520 million years ago, but the point in time at which these animals branched away from the phylum of chordata, which lack ...