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TIL When a whale dies and sinks to the ocean floor, it support a complex ecosystem around the corpse that can last for up to 50 years, drawing life from the otherwise lifeless depths.

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ZpmOR TIL that it took over 20 tons of tallow, soap and train oil to grease the slipway when Titanic was launched
rRvP0 TIL in 2000, Russian submarine Kursk experienced a torpedo system failure. The explosion caused the sub to hit the ocean floor. All 118 crew members eventually perished as a result of failed rescue missions. The president kept it quiet. Later a victims wife and mother were forcibly sedated.
WkJ98 TIL the Peruvian Navy still actively operates a ship that was built in England in 1862, disassembled into small pieces and shipped across the Atlantic, and carried by mules over 220 miles to Lake Titicaca to be reassembled. Its sister ship (sent the same way) also still works on the lake.
NXgeb TIL DNA can be taken from parchment. The DNA taken from parchment can be used to determine the animal of origin and its relation to other parchments.
YBmr TIL Al Sharpton demanded an apology from Cartoon Network for depicting Martin Luther King Jr using the term “nigga” in The Boondocks. Cartoon Network responded by making fun of Al Sharpton in a radio broadcast in a later episode.