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TIL: Orcas Are Called Killer Whale Because They Hunt Whales

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via reddit.com

WxO8 TIL the U.S. Army created a giant four-legged robot in 1969. Called the “walking truck,” it could lift a jeep and walk 5 MPH, but it never saw field use because the operator - who controlled each limb with one of his own - would become exhausted after just 15 minutes.
oWV7 TIL that in preparation for the World Cup in Brazil there were over 250,000 citizens involuntarily removed from there homes for construction and other World Cup accommodation purposes.
0wRbM TIL cats can become addicted to tuna and refuse to eat anything else. Veterinarians refer to these cats as ‘tuna junkies.’
8rZV TIL that NASA wanted to send Big Bird into space on the Challenger in 1986 to get children interested in space. The Big Bird suit was too big, however, so they sent teacher Christa McAuliffe instead. The Challenger exploded shortly after liftoff.
11kd TIL of Brenda Spencer, who shot up an elementary school at age 16, killing two and injuring eight children and a cop. When questioned why she did it, she simply said, “I don’t like Mondays.”