Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Parrot parents "name" their children with a signature call.
112
Sloths take two weeks to digest their food.
243
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
Giant Anteaters' front legs look like a panda.
48
Cows can sleep standing up, but they can only dream lying down.
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