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
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
The reindeer is the only mammal that can see UV light.
17
Parrot parents "name" their children with a signature call.
112
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
The cat brain weighs about 30g.
167