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TIL that the hermaphroditic animal known as a sea squirt begins its life as a tadpole like creature, until it settles down anus-up in a location for the rest of its life. It will then eat its own brain, disintegrate its nervous system, and fire sperm and eggs into the water to reproduce.

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Eg8YV TIL about the Deccan Traps and their major role in the Cretaceous-Paleogene extinction event
0wWEj TIL that filmmaker Ralph Bakshi grew up in an all-black neighborhood in Washington, D.C. and got his mother's permission to attend the local segregated school with his friends. The school called the police and, afraid whites would riot if they learned that a white student was attending, expelled him
aM0A TIL That Gangkhar Puensum, a mountain in Bhutan is the worlds last unclimbed mountain. It’s because at first since 1994 it was prohibited in Bhutan to climb mountains higher than 6000m, in 2003 they banned mountaineering completely.
xW1B TIL a pencil can draw a line that’s roughly 35 miles long.
9wPy7 TIL that most, if not all, uncontacted groups live in voluntary isolation - they are aware of the rest of the world, but choose to not have any contact. This is likely due to fear of diseases novel to them and violent clashes with traffickers and loggers.