Leatherback sea turtles start life the same size as other sea turtles. As they age, however, they grow progressively larger.

Sea turtles have an average lifespan of 20 to 30 years. During that timeframe, they experience changes in ocean chemistry, ...

When we picture sea turtles in the wild, it's easy to envision them as armored warriors—their hard, resilient shells serving as near-impenetrable shields against oceanic threats like sharks. These ...

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, as certain quirky cartoons have shown. The shell grows with the turtle, ...