The mass extinction at the boundary between the Cretaceous and Paleogene periods was catastrophic, wiping out much of life on ...

Turtles that crushed hard-shelled prey like clams and snails were reported to be more than five times more likely to survive ...

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 ...

Scientists say the ancient fossil skeleton of an extinct South African reptile has helped bridge a 30 to 55-million-year gap. This ancestor of the modern turtle, Eunotosaurus, is thought to be around ...

Learn how researchers use archaeological techniques to show how sea turtle shells grow in layers that capture chemical clues ...

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

Sea turtle shells record life history layer by layer over many years, clearly revealing diet, stress, movement, and ocean ...

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 ...