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Wednesday, October 21, 2026Updated 22:33 UTC

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Hearing laughter may cause orangutans to value rewards more

Source: Phys.org · Oct 21, 2026 21:00 UTC

Full disk of Earth from space showing North America — File photo NASA · Public domain · Source

The Quick Take

A new study from Indiana University shows that being in a positive mood leads orangutans to value what they learned more strongly. The study comes from the lab of Erica Cartmill, professor of animal behavior, anthropology and cognitive science in the College of Arts and Sciences at IU Bloomington, and was led by Daan Laméris, a postdoctoral researcher at IU.

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