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Great apes mirror facial expressions with surprising precision, study shows
- April 9, 2026 at 4:20 PM
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New research from the University of Portsmouth has found that great apes exhibit exactness in mimicking one another's facial expressions in social contexts. The study, published in Scientific Reports, explored how orangutans and chimpanzees mirror expressions during social interactions, particularly laugh faces, drawing comparisons with human behaviors such as the Duchenne smile—a genuine smile that engages both the mouth and eyes.
Originally published at Phys.org