Does hearing laughter help orangutans learn?
Some of the Cartmill lab’s work takes place at the Indianapolis Zoo. IU Ph.D. student Emma Nelson, above, conducted part of the laughter research on one of the zoo’s orangutans while completing a research internship there. (Courtesy of Indianapolis Zoo via SWNS) Hearing laughter helps orangutans to learn, reveals new research. Being in a positive mood leads the primates to value what they learned more strongly, according to the findings. Scientists have long acknowledged that in humans, positive moods enhance learning and make experiences more memorable. But the evolutionary origins of the trait hadn’t previously been studied in other great ape species. Researchers at Indiana University in the United States theorized that if orangutans heard laughter while learning how to find a reward, they might value that reward more. They designed a study that took place over five consecutive days…
















































