Helicoprion was a shark-like fish that lived around 270 million years ago.

It grew up to 7.5 meters long and had a spiral, chainsaw-like whorl of teeth in its lower jaw.

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Some slaughterhouses use a "Judas goat"-a specially trained goat that calmly leads sheep or cattle to the slaughter area, while its own life is spared.

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In Churchill, Canada, locals often keep their car doors unlocked so that anyone facing a polar bear can quickly escape to safety.

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People born blind naturally express core emotions like happiness, fear, and anger using identical facial muscle movements as sighted people, indicating these expressions are biologically innate, not learned through seeing others.

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The 9,100-year-old 'Cheddar Man' skeleton discovered in Somerset was genetically matched to local teacher Adrian Targett in 1997.

Their shared mitochondrial DNA proves an unbroken maternal lineage spanning 300 generations - the longest verified family connection in history.

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A British man suspected of having lung cancer underwent surgery to remove a lump in his lung.

Doctors discovered it was actually a tiny Playmobil traffic cone he had accidentally inhaled 40 years earlier as a child. He did not have cancer after all, and his symptoms improved after the toy wa removed.

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China's National University of Defence Technology (NUDT) has developed a mosquito-sized microdrone for covert military operations.

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There is no antivenom for a blue-ringed octopus bite. However, if the victim receives artificial ventilation for about 15 hours until the toxin naturally clears, they can survive with no lasting side effects.

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Noah Woods, a five-year-old boy from Georgia, woke to flames in his bedroom.

He grabbed his two-year-old sister and escaped through a window. Then he went back inside to rescue the family dog. His heroism earned him a fire department lifesaving award and honorary title.

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Adam Sandler's film "50 First Dates" inspired dementia care facilities to use daily personalized videos from loved ones, reducing patient disorientation and anxiety.

#Movies

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A strategy for winning competitive debates called spreading" involves making as many arguments as possible in a short time, so that the opponent is unable to respond to them all.

This technique, which has been described as unfair and as "sounding like a cattle auctioneer."

#Psychology

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In 2008, a Macedonian beekeeper took a legal claim against a wild bear that had stolen honey from his hives.

The Bitola court found the bear responsible for the damage and, since it had no owner and was a protected species, ordered the state to pay about 140,000 denars = US $3,500] to compensate the beekeeper.

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There is something called sleep debt and if you do not reduce the debt you can experience worsened vision, impaired driving, and trouble remembering.

Long-term effects include obesity, insulin resistance, and heart disease.

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Termites are being researched as a possible renewable energy source because their gut microbes can produce up to 2 liters of hydrogen from ingesting a single sheet of paper, making them one of the planet's most efficient bioreactors.

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Veronica Seider, a German born in 1951, reportedly had visual acuity around 20/2-about 20 times better than average- allowing her to identify people over a mile (1.6 km) away.

This earned her a Guinness World Record for smallest visible object.

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In 1986, nurse Sandra Clarke couldn't stay with a terminal patient who asked her to remain.

When she returned, the patient had passed alone. Inspired by this, she started No One Dies Alone in 2001, a volunteer program ensuring terminal patients have company during their final moments. Now it`'s active worldwide.

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Beatriz Flamini spent 500 days alone in a cave in Granada, Spain, without clocks sunlight, or human contact, as part of a scientific experiment on extreme isolation.

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When a massive star explodes as a supernova, it can briefly outshine its entire galaxy; in 1054, a supernova was so bright it was visible during the day for a month and at night for nearly two years.

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This vegan leather is made entirely from cactus (nopal) leaves, produced without harmful chemicals, and can last up to 10 years-offering a durable, cruelty-free alternative to traditional leather.

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The Silfra fissure in Thingvallavatn Lake, Iceland, is the only place on Earth where divers can touch two continental plates- the North American and Eurasian- underwater at the same time.

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20,000-year-old human footprints found in Australia include tracks of a man who was running barefoot in clay at speeds estimated to match a modern Olympic sprinter--about 37 km/h(23 mph).

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