The blue macaw is no longer found in the wild. All remaining representatives of this species are kept in captivity by private collectors.

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Every cow and bull on Earth today is descended from a herd of just 80 animals that were domesticated almost 11,000 years ago.

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There's a reason there's a hole in your pen caps.

And that's because they're a choking hazard without them. "In addition to help prevent the pen from leaking, all of our BIC caps comply with international safety standards that attempt to minimize the risk of children accidentally inhaling pen caps. Some of these vented caps … have a little hole in the top to comply with the existing safety standards," the BIC pen company explains on its website.

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When a person lies, they experience an increase in temperature around the nose

This is known as the “Pinocchio Effect".

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Before they die, cats in their last days begin to show attention to their owners, so they say goodbye.

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The whale's heart only beats nine times a minute.

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With age, more and more people start snoring.

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Ultracrepidarian: A person who gives opinions on subjects they know nothing about.

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If you eat polar bear liver, you will die. Humans can't handle that much vitamin A.

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Many elephants weigh less than the tongue of a blue whale.
Blue whales are the largest creatures ever known to us. A blue whale can gain up to 200 tons of weight, and its tongue can gain up to 4 tons. Elephants, for example, forest elephants, weigh up to 2.7 tons.

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Human sperm cells contain about 37.5MB of data each

The average "load" contains nearly 16TB of data.

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The air inside any room is about 23 times more polluted than the air outside.

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Cannabis was used to treat tetanus, typhus, cholera, rabies, dysentery, alcoholism, anthrax, leprosy, snake bites, tonsillitis, and insanity in the US in 1850.

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According to the National Cyber Security Centre, the five most commonly hacked passwords are:

‣ 123456 (23.2 million users)
‣ 123456789 (7.7 million users)
‣ Qwerty (3.8 million users)
‣ Password (3.6 million users)
‣ 1111111 (3.1 million users)

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Dogs are capable of envy.

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There are 2 countries in the world where divorce is prohibited by law: the Vatican and the Philippines.

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LOGANAMNOSIS - an obsession with remembering the specific word you've forgotten.

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There is almost no street crime in Japan.

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Changing the way you walk can change your mood

Walking with slumped shoulders can make you sad while walking with energy can increase feelings of happiness.

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Camels are very social and like to greet each other by blowing in each other's faces.

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In Japan, if the train is at least 10 seconds late, travel will be free.

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