Service dogs are trained to know when they are on duty. When their harness is on, they know they are at work. When you take it off they instantly become playful and energetic.
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If the population of China walked past you, in single file, the line would never end because of the rate of reproduction.
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The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
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Our brains have a negativity bias and will remember bad memories more than good ones.
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Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
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The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
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