Baldoni, C.; Raptis, K.; Farantouri, M.; Lenzi, I.; Lim, K. S.; Menz, M. H. M.; Muturi, M.; Reisert, M.; Bedoya Duque, M. A.; Thomas, W. R.et al.; Dávalos, L. M.; Nieland, J. D.; von Elverfeldt, D.; Dechmann, D. K. N.: Captivity alters behaviour but not seasonal brain size change in semi-naturally housed shrews. Royal Society Open Science 12 (3), 242138 (2025)
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.