Behold the world's largest sea slug- the California Black Sea Hare.
It can be found near the coast and gulf of California. And while I don't see it, the "sea hare" is named due to the two "ear-like" protrusions on its head.
Brown algae makes up most of this giant mollusks diet. And while it might seem defenseless, it's made itself highly unappealing to predators by concentrating the toxin acetoxycrenulide from the algae in its tissues.
Read More at The Malibu Post & Oddity Central