A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A dork is a whale's penis.
327
An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
10
Jellyfish as a species are actually older than dinosaurs and sharks.
383
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
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
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8