Click to share on Facebook (Opens in new window) Click to email a link to a friend (Opens in new window) Click to print (Opens in new window) Click to share on X (Opens in new window) The animal ...

Skeleton season may be just around the corner, but the skeleton age dawned with the early Cambrian Period, about 538 million to 506 million years ago. In this time span, most major animal groups ...

The oldest animal with a skeleton has been discovered, a creature shaped like a thimble that lived on the seafloor more than a half-billion years ago, researchers say. These findings shed light on the ...

Following is a transcript of the video. Narrator: A turtle's shell is as much a part of its body as our rib cage is of ours. In fact, it is their rib cage, and their spine, and their vertebrae, and ...

The missing link in the mystery turned out to be an event called the Cambrian explosion. It was only after it that living ...

If human skeletons turned to Jell-O every few months, we’d all collapse in a heap of useless, floppy limbs until our bones hardened again. When blue crabs shed their hard external skeletons, they’re ...

British geologists have found the fossil of the earliest known predatory animal with a hard shell. The 560-million-year-old specimen is the first of its kind, but it is related to the cnidarians, a ...