Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Dolphins have names for one another.
18
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11