Crows are able to look at a handful of four-sided shapes and correctly distinguish those that exhibit geometric regularity from those that don't, according to a provocative new study.
It's the first time a species other than humans has been shown to have this kind of geometric intuition, says Andreas Nieder, a cognitive neurobiologist at the University of Tübingen in Germany.
"Claiming that it is specific to us humans, that only humans can detect geometric regularity, is now falsified," says Nieder. "Because we have at least the crow."
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