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
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
Dogs sometimes fake being sick to get attention.
26
Sheep, goats, octopuses, and toads have rectangular pupils.
7
A domestic cat can sprint at about 31 miles per hour.
274
A dairy cow can produce more milk when listening to music.
446
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19