Fröhlich, M., van Noordwijk, M. A., Setia, T. M., van Schaik, C. P., & Knief, U. (2024). Wild and captive immature orangutans differ in their non-vocal communication with others, but not with their mothers. Behavioral Ecology and Sociobiology, 78(1):. doi:10.1007/s00265-023-03426-3.