MARC BEKOFF: A recent open-access research paper published in the journal Primates by… Adriano Lameira and Marcus Perlman analyzed 40 YouTube videos of 132 episodes of captive apes rope spinning, consisting of 709 rotations that mainly occurred during solitary play. They focused on the rotational speeds and duration of spinning by chimpanzees, orangutans, gorillas, and … Continue reading HIGH ON LIFE: Research shows great apes alter their mental states by spinning rapidly