Jellyfish as a species are actually older than dinosaurs and sharks.
383
Domestic pigs average a top speed of about 11 miles per hour.
182
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
In Australia, there are spiders big enough to eat snakes.
20
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
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13