Bumblebee pulls a string to extract blue disk with a sugar-water reward in the center out from under a plexiglas cover. (Screengrab from video by Queen Mary University of London) LONDON, UK, November ...
Apes and birds have long been known to demonstrate their intelligence by pulling a string to access food, but now researchers at Queen Mary University of London (QMUL) have discovered that bumblebees ...
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