Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
A group of kittens is called a "kindle".
10
A dairy cow can produce more milk when listening to music.
446
When dragonflies mate, their tails form a love heart.
22
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492