Tag - Oranguntans

Orangutans Instinctively Use Hammers to Strike and Sharp Rocks to Cut

Loui (the juvenile male orangutan) using the core as an active element to vertically strike on the concrete floor of the testing room during the Flake Trading condition of Experiment 2. Credit: Motes-Rodrigo et al., 2022, PLOS ONE, CC-BY 4.0 (creativecommons.org/licenses/by/4.0/)Untrained, captive orangutans can finish two significant steps in the routine of stone tool use:...