Good news: It's World Octopus Day! Bad news: they're taking over. Get your affairs in order, hug your kids, smoke a cigarette (jk, don't) and watch the octopus army roll up onto the beach. Maybe you've always loved the octopus, but that won't save you from our Underwater Overlords. Prepare yourself mentally for the takeover with these videos that outline their strategies and techniques. If you start to get freaked out, just remember: somewhere in that mass of muscular suction cup arms is a sharp little beak looking to bite you.

1. The Explorer: He's testing the "waters."