2. Human shell

Turtles are known for their hard, protective shell. It covers their top and their belly. The shell is so imperative that it’s actually fused into their skeleton; in fact, the turtle shell actually evolved from their ancestors’ rib cage. EDAG, a German car company, is modelling one of their cars off a turtle’s shell.

The vehicle is called “EDAG GENESIS” and so far it’s still just a concept, but they designed it to have a protective framework like the skeletal frame of a turtle’s shell. They used 3D printing to make it quite intricate and they’re designing it to increase passenger safety.