How Do Jellyfish Navigate

New research has shown that one species of jellyfish uses one set of eyes to navigate and keep itself close to home. … Box jellyfish have 24 eyes of four different types, and two of them — the upper and lower lens eyes — can form images and resemble the eyes of vertebrates like humans.

How do jellyfish know where to go?

Each ropalium is shaped like a finger, and is packed with microscopic crystals at its tip. These crystals help the jelly sense up and down, by bending in the direction of gravity, similar to our inner ear. They also have a small pigment spot, which likely helps the jelly sense basic light and dark.

How does a jellyfish control?

Jellyfish have no such central place; in fact, they have two nervous systems. A large nerve net controls swimming and a small nerve net controls all other behaviors, including feeding and spasm response (briefly curling into a ball).