Two dogs were among the Titanic survivors.
262
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
A group of kittens is called a "kindle".
10