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.

The oldest relative of living animals is a jellyfish - Big Think

The insight of Darwin's work on corals, worms and co-evolution

Newdesk Search, Page 312

Newdesk Search, Page 312

Why the Octopus Lost Its Shell

Scientists Discover That Turtles Began Living in Shells Much

Hawksbill Turtle

Newdesk Search, Page 312

Turtle, Species, Classification, & Facts

Hawksbill Sea Turtle - The Australian Museum

Stanford researchers discover that animal functional diversity