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It was thought to be a skill unique to humans, but a new study has revealed that chimpanzees also warn other members of their group when they suspect danger.
Researchers studying chimpanzees in Uganda found that in the presence of a fake snake, chimps warned other members of the group - particularly those that might be ignorant of the risk.
Findings - Systems - Communication - Perspective - Hominoids
The findings suggest that systems for communication influenced by another's perspective may have emerged in early hominoids before language-specific features.
Humans routinely adjust communication to take into account information that they know is available to their audience - an ability assumed to be absent in other animals.
Researchers - Max - Planck - Institute - Evolutionary
But researchers from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, have found that chimpanzees possess similar communication abilities to humans.
The team designed a series of experiments observing wild chimps in Budongo Forest in Uganda.
Snake - Forest - Chimps
They hid a fake snake in the forest and watched how the chimps reacted.
In the first experiment, they recorded how wild chimps used their bodies to indicate the location of the snake to other chimps – a behaviour known as 'marking.'
Third - Cases - Signalers - Location - Snake
In one third of cases, signalers marked the location of the snake model, alternating their gaze between other chimps and the snake.
In the second experiment,...
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