The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
Rattlesnake mating sessions have been known to last more than 22 hours.
232
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
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
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12