The aye-aye (Daubentonia madagascariensis) is the very definition of narsty. A nocturnal solitary lemur so weird that it is not only the sole living species in its genus, but also the only member of its family. They lead a solitary existence and try to avoid mirrors, because when you’re this ugly you don’t need a reminder.
Beyond their homely looks, these guys have rodent teeth and the creepy-best middle fingers ever.
Watch this National Geographic video to see them in action:
If you want to learn more check out the Duke Lemur Center website, but do yourself a favor and plan to visit this place to see the aye-aye and other lemurs.