A new study shows that apes can recognize pictures of their friends even after not seeing them for more than 25 years.
The study demonstrates the longest-lasting social memory found in animals other than humans.
Let's find out more.
Amazing memory
The research suggests that apes, our closest relatives, have cognitive abilities similar to ours, including memory.
The researchers worked with chimpanzees and bonobos in different zoos and used eye-tracking devices to measure their reactions to photos of familiar and unfamiliar apes.
The apes showed a stronger response to the photos of their former groupmates, especially those they had positive relationships with.
This long-lasting social memory in apes, lasting up to 26 years, is comparable to that of humans and likely existed in our common evolutionary ancestors.
Why it's important
The findings shed light on the importance of social relationships and memory in both humans and apes, highlighting the potential impact of separations caused by factors like poaching and deforestation on these endangered species.
The researchers hope to further explore the extent and richness of ape memories and investigate if similar abilities are present in other primates.
Previously, we talked about dogs barking at guests.
