The largest earthworm on record was found in South Africa and measured 22 feet.
151
Female kangaroos have three vaginas.
2
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Dolphins have names for one another.
18
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11