Ants have tiny magnetic compasses in their antennae which help them navigate.
9
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Lobsters have blue blood.
476
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Dogs sometimes fake being sick to get attention.
26
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13