Home News from the Institute Blue-throated macaws have advanced motor imitation capabilities Publications of Aline Kuhl All genres Journal Article (1) Journal Article (1) 2003 Journal Article Michiels, N. K.; Kuhl, A.: Altruistic sperm donation in a sperm-dependent parthenogenetic hermaphrodite is stabilized by reciprocal sperm exchange. Journal of Zoology 259 (1), pp. 77 - 82 (2003) MPG.PuRe DOI