Just look at that adorable goof. The aye aye is without a doubt one of the weirdest primates that evolution ever concocted. This Madagascar native is the largest nocturnal primate on the planet, but its unique features don’t end there. Look at those wide, hypnotic eyes! Those bat-like ears! The better to hear and see you with, apparently. The aye aye is possessed of outstanding night vision, and can actually echolocate just like an actual bat. The facial features are, admittedly, pretty cute, but this lemur’s other distinguishing feature — those long, Freddy Kruger-like fingers — is the stuff of nightmares.

The aye aye has an extended third finger, perfectly placed to epically flip the bird. These overlong digits serve a highly-specialized function. The aye-aye uses them to tap against the wood of hollow trees to generate an acoustic pulse that helps them locate larvae for food. So far so good, but after they find a cache of scrumptious grubs, the horror movie begins. The long finger contains an extra joint with the ability to swivel like a shoulder in its socket. This helps the aye aye effortlessly fish larvae out of all those hard-to-reach places.

Great at flipping the bird, terrible at hitch-hiking

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