A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Sharks have been on the planet longer than trees.
14
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
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2