Crows have been shown to understand the concept of zero

Re:Crows have been shown to understand the concept of zero by UI_at_80x24 on Tuesday August 10, 2021 @02:21PM (#28132332)

To expand on your mention of crows.

Not only do crows learn to recognize PEOPLE by their FACES, they teach their offspring to avoid/mistrust those same people. Those offspring teach their offspring. So the "grandchild" of the original bird learns to avoid a specific person. *(Note the documentary I watched with this revelation didn't follow any further generations. We don't know how many generations are taught this lesson.)

Think about that for a minute. I don't recognize the people that live 2 houses away from me, these birds teach their young that SPECIFIC humans are dangerous.

This isn't the study I watched, but it's close. https://www.discovermagazine.com/planet-earth/grudge-holding...

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Re:Crows have been shown to understand the concept of zero by Jake_Barnes on Tuesday August 10, 2021 @09:47PM (#28136990)

YES! I am pretty sure I have watched the same documentary! It was the one that a town hired a falconer to try to get rid of a murder of crows that had decided to move in?

That documentary was so interesting(in my opinion at least). I think it might be on Youtube, but I don't remember the name.

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