The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Did you know?
The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.
Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
Did you know?
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Did you know?
Medication errors are three times higher among children and infants than with adults.
True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
