Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
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It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
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Females learn to talk earlier, use sentences earlier, and learn to read more quickly than males.
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According to Harris Interactive, 70% of men and 57% of women shower daily.
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The first man to swim the length of Great Britain grew a beard to stop jellyfish stinging his face.
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Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
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During your lifetime, you'll eat about 60,000 pounds of food, that's the weight of about 6 elephants!
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