Chimpanzees use silent smiles as complex as humans

Press/Media: Research cited


A new study has revealed that chimpanzees have the same types of smiles as humans when laughing, which suggests these smile types evolved from positive expressions of ancestral apes. The new findings from suggest that chimpanzees' communication is more similar to humans than was previously known.

Period10 Jun 2015 → 10 Jun 2015

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