Dogs: A border collie named Chaser learned the names of over 1,000 toys and could fetch any of them on command.
Ravens: Ravens can plan ahead, even turning down a small treat now so they can get a bigger one later.
Magpies: This bird is one of the very few animals on Earth that can recognize its own reflection.
Rats: Rats let out tiny chirping “laughs” when they’re tickled, and they’ll chase your hand to get tickled again.
Bees: Honeybees dance to tell their hive where to find food, and bumblebees have even been seen rolling tiny balls just for fun.
Dolphins: Every dolphin has its own signature whistle that other dolphins use to call it, almost like a name.
Elephants: Elephants can recognize themselves in a mirror and appear to grieve when they lose a loved one.
Pigs: Scientists taught pigs to play a simple video game using a joystick and their snouts.
Octopuses: One octopus famously escaped his aquarium tank at night, slid across the floor, and slipped down a drainpipe to the ocean
Crows: This bird can remember your face for years, and if you’ve wronged it, it might even tell its friends.