Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
A scorpion can hold its breath for up to 6 days.
19
Dolphins have names for one another.
18