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TIL the leopard slug's mating ritual is strangely beautiful

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9YZ1G TIL that blood turns green when 30 feet underwater, because red light cannot reach that far down so the green pigments in our blood are reflected back instead.
6Evx8 TIL The reason airline food tastes "bad" to many people is that conditions on an airplane, including low air pressure, dry air, and background noise, affect one's senses of smell and taste.
D1Oov TIL The UK has the 'Whole Life Order' whereby a prisoner who is being sentenced to life imprisonment is ordered to serve that sentence without any possibility of parole. It has been reportedly issued in approximate 100 cases since its introduction in 1983.
GYx97 TIL that Hello kitty is the second highest-grossing media franchise after Pokémon
b9DPj TIL The “Cinnamon challenge” is dangerous. Cinnamon powder, when inhaled, can cause inflammation and permanent scarring in the lungs, leading to conditions like emphysema and pulmonary fibrosis.