Cara Giaimo: “The chimps went crystal cuckoo. In one yard, they repeatedly approached the monolith until the alpha fe...
Cara Giaimo: “The chimps went crystal cuckoo. In one yard, they repeatedly approached the monolith until the alpha female, Manuela, wrenched it off its pedestal. After that, the crystal rarely left the troop's sight, while they largely ignored the sandstone rock. One video shows a 50-year-old male chimp named Yvan carrying it while he climbs and eats cabbage, passing it between his hands and feet with great panache. In the other yard, the experiment was cut short after a chimpanzee named Sandy immediately grabbed both items from their pedestals and brought them into the dormitories, where human caretakers don't generally go.” https://lnkd.in/eX-pkE8H