Is this the cutest sea creature ever? Keen diver Yusuke Fukami fulfilled a personal dream by snapping a cartoon-like Costasiella sea slug while in Bali. He says: “One of the diving points was in ...

The animal belongs to a genus of air-breathing marine slugs called Peronia, according to a study published ... Here are three of our most recent eye-catching stories. → 6-foot-long sea creature — with ...

Biology researcher Sayaka Mitoh said she loves studying Japanese sea slugs because they are small, cute and weird. They can even briefly photosynthesize like a plant drawing food from the sun.