This Robot Is Part Sea Slug

We usually think of cyborgs as part human, part machine, but roboticists don't limit themselves that way. Researchers have developed a hybrid robot built with body parts from a novel source: sea slugs.

The new robot combines a Y-shaped muscle from the mouth of a California sea hare (Aplysia californica) with a 3D-printed skeleton.

Researchers surgically removed the so-called "I2" muscle from the mouths of sea slugs and glued them to flexible, 3D-printed plastic frames.