A group of kittens is called a "kindle".
10
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
In 2005, in Africa, it was reported that three lions rescued a 12-year-old girl from kidnappers and guarded her for half a day until help came.
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When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
Only 3% of bird species have penises.
0
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10