Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
A lion in the wild usually makes no more than twenty kills a year.
186
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
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
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Denmark has twice as many pigs as there are people.
66
Moths are unable to fly during an earthquake.
328