The head of a jellyfish is called the "Bell."
6
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
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 koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Dolphins have names for one another.
18
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79