University of Tübingen study finds crows possess numerical literacy, controlling caw count in response to cues.

A study from the University of Tübingen reveals that crows possess the ability to count their vocalizations, similar to young human toddlers. This "numerical literacy" allows crows to control the number of caws they produce in response to visual and auditory cues. This research suggests a convergent evolution in birds and mammals, offering insights into human numerical abilities and cognitive disorders.