University of Washington scientists trapped a few American crows in 2006 while wearing a caveman mask; birds learned to recognize the threatening face, passed the warning to younger crows, and the response lasted through the population for 17 years

Research from the University of Washington highlights the fascinating memory of crows, showing that they can recognize threatening human faces for many years. This ability isn't limited to those who have had direct confrontations; the knowledge spreads through their social networks. Young crows learn from observing older members, effectively avoiding danger.

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