Scientists Have Revealed This Incredibly Human-Like Trait In Crows

in Germany found that crows can ‘count’ out loud by producing a specific and deliberate number of caws in response to visual and auditory clues.said: “While other animals such as honeybees have shown an ability to understand numbers, this specific manifestation of numeric literacy has not yet been observed in any other non-human species.”“Whether this capacity exists in animals other than humans is yet unknown.

The researchers conducted their study on three crows which were trained to produce a variable number of vocalisations, between one and four, upon being shown an arbitrary symbol or audio cue. Once they had produced the requisite number of caws, the crows had to then peck a target to signify that they were done.

All three crows, the researchers found, were able to produce the correct number of caws in response to the cues, with the occasional error mostly presenting as one caw too many or too few. The researchers said: “Our results demonstrate that crows can flexibly and deliberately produce an instructed number of vocalisations by using the ‘approximate number system’, a non-symbolic number estimation system shared by humans and animals.”Sign up and we'll email you a daily dose of lifestyle stories, covering sex, relationships, health, wellness, money, and green living.

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