- womens hearts beat faster than mens
- worker ants may live for 7 years and the queen up to 15
- you begin to feel thirsty when your body losses 1% of water
- you brain weights 2% of your body weight though uses 20% of all oxygen you breathe and 15% of the body’s blood supply
- you breathe 23,000 times a day
- you burn more calories sleeping than watching television
- you can buy square watermelons in Japan (developed to stack better in supermarkets)
- you can only see a rainbow if have your back to the sun
- you can smell a skunk 1.6km (1 mile) away
- you can tell the sex of a horse by its teeth (most males have 40, females 36)
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