If giant, slimy slugs aren't your thing, look away now. But if they are, boy have we got a treat for you. 

YouTuber and TV host Coyote Peterson filmed this cool encounter while exploring tide pools on the Los Angeles coast.

The creature might look supersized (and Peterson estimates its weight at about ten pounds, or over four kilograms), but it's actually on the small side for its kind. You're looking at a sea hare, a mollusc that's closely related to nudibranchs. More specifically, you're looking at a California black sea hare (Aplysia vaccaria). And these guys get big ... really big – the species can reach more than 15 kilograms (33lbs).

Peterson was joined by a wildlife expert on his tide-pool adventure, and for the rest of us, handling sea slugs is not a great idea (even the irresistibly giant ones). These animals' gills are hidden, but they do require water to breathe.

Black sea hares hang out in the waters along the US Pacific coast and Baja California, Mexico, an area that's also home to another sea hare wonder, Aplysia californica:

Like most sea slugs, these animals are herbivores, with diets that are mostly made up of seaweed and kelp. They're also hermaphrodites, possessing both male and female sex organs. While that's interesting enough on its own, things get even more freaky.

When it's time to mate, multiple sea hares form a chain that can result in millions of eggs, with the hare in front acting as a female to be mounted by another slug acting as a male, who in turn acts as a female to be mounted ... oh, you get the idea: