Scientists studying crows get big surprise - they're so smart they understand the concept of zero
by Andy Corbley

Good News Network    Translate This Article
3 August 2021

On 3 August 2021 Good News Network reported: A German university has proven some crows can learn to recognize 'zero' as a counting unit. The work comes from the University of Tubingen in Germany, where professor Andreas Nieder works with carrion crows to perform intelligence tests. The crows were shown two sets of dots on a screen and were taught to indicate if the two screens had the same values. There could be between zero and four dots. Exactly as with 1, 2, 3, and 4 -- when the screens showed no dots, neurons in the crow's brain demonstrated it was understanding this was a numeric value, but that it was a numeric value that contained nothing. Global Good News service views this news as a sign of rising positivity in the field of science, documenting the growth of life-supporting, evolutionary trends.

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