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TIL Cuvier's beaked whales hold the record for the deepest and longest dives ever documented for any mammal. During one study, the longest dive recorded was 137.5 minutes. This was also the deepest dive at 9,816 feet. The whales' rib cages can fold down to reduce air pockets and decrease buoyancy.

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GAZXj TIL that in the 1970s, the CIA used a robotic cat named "Acoustic Kitty" in an attempt to spy on the Soviets
8eQLV TIL a zoologist figured out the lifecycle of the parasitic intestinal worm Ascaris Lumbricoides in 1879 by purposely swallowing eggs discovered in a human corpse infected with the worms
lmga TIL a woman was elected to the US house of representatives in 1916, four years before women won the right to vote nationwide
B6ek TIL the Back To The Future producers regretted ending the first film with Jennifer in the car, because it required them to come up with a story that fit her in rather than a whole new adventure
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