New research sheds light not only on how primates – including humans – respond to threats, but also on the building blocks of language itself
Vervet monkeys in the savannah of east Africa utter three distinct cries depending on whether they spot a leopard, a snake or an eagle, their three main predators.
Vervet monkeys in the savannah of east Africa utter three distinct cries depending on whether they spot a leopard, a snake or an eagle, their three main predators. To deepen their understanding, Fisher and colleagues set up an experiment with a community of green monkeys in Senegal which they have been observing for more than a decade.
Not only was the cry different from the response to leopards or snakes, it was "strikingly similar" to the eagle alarms of East African vervets. To see what the monkeys might have learned from the drone fly-over, the scientists followed up a few days later with a second experiment.
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