The cultured chimpanzees (Magazine; Nature)

The cultured chimpanzees (Magazine; Nature)

The cultured chimpanzees Nature, 17 August 2011 Liberia — Thump! Thump! Thump! As the hollow sound echoes through the Liberian rainforest, Vera Leinert and her fellow researchers freeze. Silently, Leinert directs the guide to investigate. Jefferson...