The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Mushrooms are more closely related to humans than they are to plants.
47
In one day, adult lungs move about 10,000 litres of air.
11
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
160
You can't tickle yourself.
29
You forget 90% of your dreams.
256
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Your thumb is about the same size as your nose.
124