Apes recognize photos of groupmates they haven't seen for more than 25 years and respond even more enthusiastically to pictures of their friends, a new study finds. The work, which demonstrates the longest-lasting social memory ever documented outside of humans, and underscores how human culture evolved from the common ancestors we share with apes, our closest relatives.
from Latest Science News -- ScienceDaily https://ift.tt/CLx5Xzy
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