Some species of octopuses have been known to escape from their tanks in aquariums and steal food from neighboring tanks.
Cows have best friends and can become stressed if they are separated from them.
Kangaroos can't walk backwards.
A group of hedgehogs is called a prickle.
Koalas have fingerprints that are so similar to human fingerprints that they can sometimes be confused at a crime scene.
Sea otters hold hands while sleeping so they don't drift away from each other.
Female hyenas have a pseudo-penis that is larger than the males' actual penis.
Male seahorses are the ones who carry and give birth to their young.
A group of penguins in the water is called a raft, while a group of penguins on land is called a waddle.
A cat has been the mayor of a town in Alaska for over 15 years.
Chimps are known to use tools, such as using sticks to fish for termites or using rocks to crack nuts.