› added 9 years ago

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TIL that the photographer who took Abraham Lincoln’s photo on the $5 bill is better known for inventing a pump-action folding shotgun.

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J8xj TIL that the ‘Cinnamon Challenge’ can result in a collapsed lung
N7wGe TIL a 2015 study rated pork fat as the 8th most nutritionally rich food in existence
bE4p TIL The reason humans dislike nails on a chalkboard is due to an evolutionary response. The sound frequency emitted is at / around that of a human scream.
0dw45 TIL that geese are used to guard borders and property because of how territorial they are and in instances are considered better than dogs because they are more selective in what they consider a threat
Zp90R TIL that despite the second X chromosome being thought of as totally inactivated in XX cells, ~15% of genes escape silencing. These same genes are present on the Y chromosome, ensuring they are always bi-allelically expressed.