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TIL that the Northern treeshrew is the only mammal known to willingly consume spicy foods other than humans. This is due to a natural resistance to capsaicin.

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VBJO0 TIL because of constant famines during the British Raj Indian genes got starvation adapted and resistant to insulin. As a result, today Indians are four and six times more likely to get type 2 diabetes than white people. Over 100 million people have diabetes in India.
NXZbN TIL of Reeve Aleutian Flight 8 from 1983, where the crew successfully landed the plane despite physically losing a propeller, having the controls effectively jammed, and with the other 3 engines stuck at full power. The plane, a 1959 Lockheed Electra, still flies today with a firefighting service.
OGZkL TIL That approximately 460,000 children go missing every year in the USA.
9Y0m6 TIL of the ‘Peggy Martin’ rose, that survived two weeks under 20’ of saltwater after Hurricane Katrina
8eEBb TIL it is possible to convert heat directly into electricity, with something called a Thermionic Generator. Humans are unfortunately not great at building them (yet).