Wide Variation in Chimpanzee Nut-Cracking Skills Indicates Both Cognitive Abilities and Cultural Learning
Surprisingly, recent studies of nut-cracking chimpanzees have revealed unexpected variation in skill among individuals. These findings provide new insights into the cognitive abilities of our closest living relatives and challenge the assumptions previously held about chimpanzee tool use. Whereas some chimpanzees are quite proficient at cracking open nuts with stones, others seem to struggle, revealing…