Elephants are the only animals that can't jump.
1
Only male fireflies can fly.
46
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The lifespan of the common goldfish is over 20 years!
60
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
