The reindeer is the only mammal that can see UV light.
17
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
A dork is a whale's penis.
327
The colossal squid has the largest eyes in the world.
4