Posted: Mar 11, 2016 2:15 pm
The_Piper wrote:...
Again with my red squirrel references, they will call out with a rattlesnake call (apparently) with or without another squirrel being nearby. (Of course red squirrels are vastly different from chimps and are solitary not social.)
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Perhaps that is because they have a target-dependent fear response? Forest monkeys do the same kind of thing. In their case, it informs other monkeys of what they need to do to guard against the threat being flagged, which is different for different threats.