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TIL that Humpback whales have recovered to 93% of their pre-whaling population of 27,000 after being reduced to only about 450 in the mid-1950s.

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MPVV TIL masturbation can help with menstrual cramps.
krP7 TIL there was a private prison that fed vegan meals, gave Bible studies, offered job training, anger management, etc. where violence dramatically decreased and inmates of all races associated with each other, where only 2% were rearrested, when the state of California had a rearrest rate of 95%.
0rAv TIL Lack of play for kids results in mental health problems.
nvlP TIL of a Brazillian boy who died after fapping 42 times non-stop. He was 16 when he died.
gM1Gb TIL the Japanese squadron that bombed Pearl harbour was detected by a prototype Hawaiian Radar before the air raid but no alert was sent out, as nobody believed the inexperienced radar operators.