There are about 10,000 taste buds on the average human tongue.
Iowa has more independent telephone companies than any other state.
The moon is 27% the size of the Earth.
When opossums are playing opossum, they are not playing. They actually pass out from sheer terror.
In space, astronauts cannot cry, because there is no gravity, so the tears can't flow!
Twenty percent of Earth's oxygen is produced by the Amazon forest.
Our eyes are always the same size from birth, but our nose and ears never stop growing.
The largest frog in the world is The Goliath Frog of Gabon in West Africa and can grow as big as 33cm long and up to 3kg heavy.
Chimpanzees are the only animals that can recognize themselves in a mirror.
The embryos of tiger sharks fight each other while in their mother's womb, the survivor being the baby shark that is born.