The muscle plate in the lower half of the turtle's body folds inwards along a line that runs down the turtle's body. This line will eventually form the edge of the shell and it's called the carapacial ...

Critically endangered, radiated tortoises sport star patterns on their shells and live in the forests and scrubland of Madagascar. (Images courtesy Smithsonian's National Zoo) People often use the ...

We found how the turtle shell formed. It is not derived from a fusion of osteoderms." "It is the first fossil evidence to show that the turtle may have originated from a water rather than land ...