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TIL dogs and raccoons have around 530 million neurons in their cerebral cortex, while cats and brown bears only have around 250 million neurons in their cerebral cortex. Herbivores and domesticated animals also tend to have the same amount of neurons as carnivores and wild animals.

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0wRZL TIL former NFL player Dave Duerson killed himself, though he chose to shoot himself in the chest, and left a note specifically requesting his brain be used for research into a neurodegenerative disease (CTE) which can be caused by playing football. Researchers did later confirm he had the disease.
v1GX8 TIL that Mount Everest's Peak XV was calculated to be exactly 29,000 ft, but was publicly declared to be 29,002 ft in order to avoid the impression that an exact height of 29,000 ft was nothing more than a rounded estimate.
DVNJ TIL A man who wanted to create a whites-only town in North Dakota was found to be of African descent
x6NW1 TIL that J.K. Simmons has voiced the yellow M&M since 1996 and that the ongoing role allowed him to pursue better roles through the increased financial freedom.
X01xr TIL: A town in Nevada STILL sounds a "sundown siren" at 6pm every evening, originally signifying that Native Americans were required to leave town by 6:30pm or face jail or fine