Most notably are Nim Chimpsky, a chimpanzee; Koko, a gorilla and Kanzi, a bonobo. Researchers Zanna Clay and Frans de Waal studied the socio-emotional development of the bonobo chimpanzee. The chimpanzee is more robustly built than the bonobo but less than the gorilla. The common chimpanzee tends to display greater aggression than does the bonobo. The genus Pan consists of two extant species&colon; the common chimpanzee and the bonobo. Its rainforests harbour many rare and endemic species, such as the chimpanzee and the bonobo. Anatomical differences between the common chimpanzee and the bonobo are slight. His stage name Bonobo, is a reference to the Bonobo chimpanzee species. Schwarz published his findings in 1929, classifying the bonobo as a subspecies of chimp. It is observed consistently in hyenas, lemurs and the bonobo. Acting on Action Plan recommendations, the ZSM developed the Bonobo and Congo Biodiversity Initiative. Sexual activity occurs between almost all ages and sexes of bonobo societies. This migration mixes the bonobo gene pools, providing genetic diversity. In GNOME it has gradually replaced most parts of the earlier Bonobo mechanism. She has collaborated with Flying Lotus, Mr. Scruff, and Bonobo.