A group of kittens is called a "kindle".
10
The cat brain weighs about 30g.
167
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
Female kangaroos have three vaginas.
2