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When the water cools in Australia, it's time for crabs to go back to crab school. OK, that's not true. But now you're thinking about how awesome "crab school," would be, right? Like, this week on Crab School: Sandra learns that it doesn't matter how big her pincers are, Cole narrowly escapes a seagull, Johnny brings a knife to class, and a mysterious new student moves into town—a lobster!

Anyway, crab school unfortunately isn't a real thing (thanks for crushing that dream, SCIENCE). But the cooling water does mean that hundreds of thousands of spider crabs migrate until they're in a big crab rave where they can safely get their molt on (and provide fodder for internet videos). Take a look: