Cartoons often suggest turtles wear shells like removable armor. Those stories show turtles stepping out, swapping shells, or treating them like clothing. Biology disagrees. A turtle shell is not an ...

Following is a transcript of the video. Narrator: From blistering hot deserts to deep blue oceans, from frozen ponds to swampy wetlands, animal species have adapted and evolved in unique ways. Let's ...

It's a long-held idea that turtles can tuck their heads into their shells when threatened. But is it true? And is this protective trick why turtles the world over have shells today? The answer is that ...