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 ...

When it comes to animals with iconic features, the turtle is high on the list. Deer have horns, kangaroos have pouches, humans have existential dread, and turtles have shells... right? Apparently that ...

Unique among Earth’s creatures, turtles are the only animals to form a shell on the outside of their bodies through a fusion of modified ribs, vertebrae and shoulder girdle bones. The turtle shell is ...