Lewanzik, D.; Sundaramurthy, A. K.; Goerlitz, H. R.: Insectivorous bats integrate social information about species identity, conspecific activity, and prey abundance to estimate cost‐benefit ratio of interactions. Journal of Animal Ecology 88 (10), pp. 1462 - 1473 (2019)
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.