A group of kittens is called a "kindle".
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
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255