Discover what’s inside a turtle shell, living bone fused to spine and ribs, packed with organs, muscles, and nerves that ...

How the turtle shell evolved has puzzled scientists for years, but new research sheds light on how their hard shells were formed. Scientists say the ancient fossil skeleton of an extinct South African ...

A sea turtle’s shell is living bone fused directly to its spine and ribs. It is not a detachable shield or an external case, ...

A 260 million-year-old fossil has been determined to be the oldest ancestor of turtles found to date, revealing something about the reptile's mysterious past. Michelle Starr is CNET's science editor, ...

Turtles today are often slow-moving, modestly sized creatures, but their ancient relatives were quite different. Long before ...

Dr. Universe: Why can’t sea turtles pull back into their shell? I was at the St. Louis Zoo, and they said tortoises and other turtles can pull back into their shells. – Tyler, 7, Missouri There are ...