Scientists Discover That Turtles Began Living in Shells Much Earlier Than Once Thought

Unique among Earth’s creatures, turtles are the only animals to form a shell on the outside of their bodies through a fusion of modified ribs, vertebrae and shoulder girdle bones. The turtle shell is a unique modification, and how and when it originated has fascinated and confounded biologists for more than two centuries.

Researchers Find Living Clam Thought to Have Gone Extinct

Newdesk Search, Page 314

Scientists Discover That Turtles Began Living in Shells Much

Archelon Turtle Animal Facts - A-Z Animals

Scientists Discover 230-Million-Year-Old Turtle That Had No Shell

250 Million Years of Turtle Evolution

Why Do Turtles Have Shells? - The Atlantic

Egg Laying or Live Birth: How Evolution Chooses

Scientists discover ancient Greenland shark in a really strange

Scientists discover that turtles began living