Dolphins have names for one another.
18
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
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212