In Part 3 of the Tori the Turtle series, we’ll crochet the turtle shell—the final and most iconic piece of this adorable sea creature! Learn how to shape and structure the shell using rounds ...

"Why the turtle shell evolved is a very Dr. Seuss-like question and the answer seems pretty obvious—it was for protection,” Lyson says in a statement.

There are two camps in the debate. As turtle embryos develop, their shells grow directly from the animals' ribs, and adult turtles' ribs are fused to the shell carapace. Some scientists conclude ...

The ribs of a 240 million-year-old fossil hold clues to how the first turtle shell evolved. And its skull shape seems closer to that of lizards and snakes than to an ancestor of dinosaurs and birds.

The first turtle with a fully developed shell — a creature that would be clearly recognizable to almost everyone as a turtle — shows up in the fossil record about 214 million years ago. But the fossil ...

The gradual origin of the turtle shell with two hypothetical ancestors, from an animal with isolated lumps of armour, to one with a complete shell A newly identified fossil could explain one of ...