Volkmer, T.; Kupan, K.; Rohr-Bender, V. A.; Guirao-Ortiz, M.; Cruz-López, M.; del Angel, S. G.; Rodrigues, L. F.; Eberhart-Hertel, L.; Küpper, C.: Hidden in plain sight: camouflage and hiding behaviour of wild precocial chicks in an open landscape. Behavioral Ecology and Sociobiology 78 (6), 73 (2024)
Scientists studying a rare population of tool-using chimpanzees have found that aging can have a profound impact on their abilities—but not all chimps decline equally.