Rattlesnake mating sessions have been known to last more than 22 hours.
232
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
A dairy cow can produce more milk when listening to music.
446
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
Whales and dolphins can't taste anything other than salt.
11