Squirrels plant thousands of trees by forgetting where they buried their nuts.
Octopuses have three hearts.
Horses can sleep both standing up and lying down.
A cat's whiskers are roughly as wide as its body — used for measuring gaps.
Dogs can recognize their owner's scent even after years apart.
Baby elephants suck their trunks for comfort, just like human babies suck their thumbs.
Cows have best friends and get stressed when separated.
A dog's sense of smell is 40 times greater than ours.
Cats have a specialized collarbone that lets them always land on their feet.
Penguins propose to their mates with pebbles.
Dolphins sleep with one eye open.
A group of flamingos is called a flamboyance.
