- Mount Everest is bigger now than the last time it was measured.
- The Amazon rainforest produces half the world's oxygen supply.
- Over 5 million people in Brazil are employed in the coffee industry.
- Both green and black tea come from leaves of the same tree.
- Most dinosaurs lived to be more than 100 years old.
- Mosquitoes prefer children to adults and blondes to brunettes.
- Mosquitoes dislike citronella because it irritates their feet.
- The US flag has 13 stripes (representing the original 13 states).
- Italian mathematician Leonardo of Pisa (better known as Fibonacci) lived between the years 1170 and 1250 and is best known today for Fibonacci numbers, the number sequence named after him. Fibonacci introduced the number sequence to Western Europe in his book 'Liber Abaci' after they had been described earlier by Indian mathematicians.
- Mangoes have noses.
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