Males were targeted. Females were left untouched. The reason comes down to the thickness of a shell.

Every winter, northern map turtles cluster together to hibernate in the water beneath a frozen lake. Then one year, their ...

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 ...

Techniques developed to study the distant past—from dating ancient artifacts to reconstructing climate records in ice ...