A condition called “False Awakening” occurs when the sleeper believes they are awake when in reality they are still sleeping. False awakenings usually occur during rapid eye movement (REM) sleep, which is the sleep stage most closely tied to dreaming.

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Scorpions are so resilient that if you freeze them for a few weeks, they will wake up alive and well.

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The protruding pink sac hanging from the side of the camel's mouth is called a dulla. The camel's dulla serves as a double function, to assert superiority over other males and win over the female camels.

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Female Greenland sharks are thought to reach sexual maturity when they surpass the 4-metre (13-foot) mark in length, which takes approximately 150 years to achieve. They are ovoviviparous (that is, eggs are retained within the body until they hatch) and produce an average of 10 offspring at a time.

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Josef Koeberl from Austria broke the world record when he managed to stay 2.5 hours inside a glass box filled up with ice cubes.

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In Australia, failure to vote is subject to a fine.

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Adding salt to a pineapple actually causes it to taste sweeter as it reduces the bitterness of the fruit.

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Recent studies have shown that ants are capable of lifting a weight 5,000 times their own body weight.

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The airplane jet engine, developed by Frank Whittle in 1930, powered the Gloster E28/39, reached 740 km/h, and by 2025 drives commercial flights across continents.

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High fences between frame houses are banned in the United States. All because of fire hazards.

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11% of people on Earth are left-handed.

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The Titanic was the first ship to use the SOS signal in an emergency.

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Granite is a natural stone with a radioactive background, so granite buildings have higher radiation levels.

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Laughter improves blood flow throughout the body.

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Hair contains information about everything that has been in your bloodstream, such as medicine, drugs, minerals, and vitamins.

Human hair absorb elements from the bloodstream and provide a historical record of both health and the use or nonuse of chemical substances.

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The Largest embryo is a shark litter, sometimes eats its brothers and sisters in the womb.

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White torture, often referred to as "white room torture" is a type of psychological torture technique aimed at complete sensory deprivation and isolation.

A prisoner is held in a cell that deprives them of all senses and identity. It is particularly used in Iran, however there is also evidence of its use by the Venezuelan and the United States intelligence services.

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Sharks don't have vocal cords. They communicate through body language, such as head butts, shaking their heads, or even hunching their backs.

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The tallest and smallest person of that time. This photo, made in 1937, shows Robert Wadlow (2.72 m) and Clarence Chesterfield Howerton (71 cm).

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Pineapples are not just a single fruit, but a group of berries that have been fused together

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👩‍👧‍👧Big family

The largest family in the world consisted of 94 children - from one father and 39 mothers

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