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TIL that scientists have never found a single incident of cancer in naked mole rats — which live upwards of 30 years — making them an important model for finding ways to fight the disease.

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mxEEM TIL that on examining the brain of 111 deceased NFL players, 110 of them were found to have Chronic Traumatic Encephalopathy (CTE) - a degenerative disease believed to be caused by repeated blows to the head.
awKlZ TIL the Tuatara is neither lizard nor snake, but it's own distinct order that dates back 250,000,000 years, making them a "living dinosaur." They have a highly developed Parietal Eye on top of their head, connected to the brain, that allows them to sense differences in lights and shadows.
Q7Wd TIL ~1 in 5 British children are conceived on Ikea mattresses
awAEA TIL: Isaac Newton set out the colors of the rainbow we memorize today. However, he originally didn't include orange or indigo. He only added them later because of his occult belief that there must be 7 separate colors, just like there are 7 notes in a musical scale and 7 days of the week.
LQpEZ TIL that Nobel-winning economist Kenneth Arrow was known for his extensive knowledge of topics beyond his field. His colleagues tried to test his knowledge by discussing the breeding habits of grey whales in his presence. Not only was Arrow familiar with the work, he even thought it had been refuted