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TIL a 52Hz frequency whale call from an unidentified species has been heard since the 80’s; it is thought that only one whale uses this frequency, who scientists call the “World’s Loneliest Whale.”

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via reddit.com

OG0xL TIL that Sweden has a nationwide network of "Fritidsbanken," basically lending libraries of donated, used recreation equipment. Want to try a new sport, but not sure you'll like it? Borrow the equipment for free for up to two weeks.
eGoL TIL of “Shifting Baseline Syndrome”, where each generation uses previous reference points as baselines despite those points representing significant changes from even earlier states. Each generation defines the “natural” state differently, and large changes over time often go unnoticed.
QJb4k TIL steppe eagle named Min was set out with SMS tracker attached by Russian researchers. Little did they know Min, a globetrotting eagle appeared in Iran and sent hundreds of texts with roaming rates that bankrupt scientific study.
nvGP TIL Washington State has the highest minimum wage in the US ($9.19/hr; tips don’t count) and four states have minimum wages lower than the federal minimum wage (with Georgia and Wyoming at $5.15/hr)
9EEB TIL that having children in your early 20s was a US cultural norm only for baby boomers, and that earlier in the 20th-century eugenicists had warned against it