Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
A group of unicorns is called a blessing.
304
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
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
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Squirrels forget where they hide about half of their nuts.
698
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402