1 Some people try to conceive a baby several times unsuccessfully. 2  Miscarriages can oâ¦. 3  Genetics 101: The Role of the X Chromosome The X chromosome is a factor in determining sex in humans. 4  Along with the Y chromosome, the appearance of an X chromosome determines whether babies are born male or female.
For other uses, see Bonobo (disambiguation). The bonobo (/bÉ.ËnoÊ.boÊ/ or /ËbÉ.nÉ.boÊ/; Pan paniscus), formerly called the pygmy chimpanzee and less often, the dwarf or gracile chimpanzee, is an endangered great ape and one of the two species making up the genus Pan; the other is Pan troglodytes, or the common chimpanzee.
Along with the common chimpanzee, the bonobo is the closest extant relative to humans. Because the two species are not proficient swimmers, the formation of the Congo River 1.5â2 million years ago possibly led to the speciation of the bonobo.