Immature birds are similar in appearance to the adult female. The beak of the adult female is all black. Immature males and females are very similar in appearance to the adult female. The male has dark eyes and the adult female, yellow. A single instance of a male cannibalizing an adult female is known. The polydnavirus replicates in the oviducts of an adult female parasitoid wasp. These were identified as belonging to a mature adult female with osteoarthritis. The length of adult female and male birds ranges from with a wingspan. Hall reported the home range of an adult female as . The home range of an adult female averaged . Some adult males continue their childhood by labeling adult female companions "dolls". The bite force of an adult female hippo has been measured as . We were just told we had to add an adult female character. The fertility rate averaged two children per adult female in 2013. Despite the differences between the adult female and male are derived from the intermediate mesoderm.