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TIL a 4-yr-old captive beluga whale who'd been living with belugas moved to a dolphinarium where her only companions were dolphins. In her early days with the dolphins, she made beluga "contact calls." Within 2 months, the beluga imitated dolphin whistles & dropped the beluga calls altogether.

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DaKg TIL that out of 200,000 ostriches studied over a period of 80 years, not a single one buried its head in the sand
9wxL6 TIL Alysson Muotri wants Sentiomics: Sentiomics is the development and ‘education’ of human brain organoids to become sentient.
loAaA TIL The Loretto Chapel needed access to its choir loft. In 1877 an unknown Master Carpenter appeared and build a staggeringly precise spiral staircase using hand tools, glue and non native wood. Then disappeared without being paid.
nWagd TIL that dogs were used as mine delivery vehicles
OLk4 TIL about the underwater signal Upsweep, a long train of narrow-band upsweeping sounds strong enough to be recorded throughout the entire Pacific. It’s origin is still unknown.