A group of kittens is called a "kindle".
10
Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
19
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23