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To answer your question, you really have to specify what animal your talking about, some animals simply won't live long enough for learning to be an effective mechanism. If there are few predators, evolution will favour animals who are less vigilant about checking for potential predators generally, since this costs time (Google search vigilance behavioral ...


I have cats. Whenever I let them out into the garden, the birds in the trees start chattering like crazy. Probably they are warning each other of these predators. When they're back in the house, the birds stop. Interestingly, they have no reaction to my dog. In this case, I guess the birds pass on the knowledge by warning each other whenever they see a ...

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