The business world has grown both in size and competition.
Equivalent to pollen tube competitionin plants and a type of .
Bonobos are the only non-human African great ape exception to infanticide, and are also the only great ape species that does not sexually coerce females, humans included. The reason seems to be the social organization that arose from a plentiful food supply that allowed for larger groups in which females males actively reduced male violence. Many behaviors within and between bonobo bands are unknown with chimps. A male bonobo will remain with his mother for her entire life, and male bonobos do not vie for dominance. Instead, bonobos have a sexuality that no other animal on Earth has remotely approached. They settle nearly everything with sex. Female on female is common, particularly when bands meet, but , with the sole exception of mothers and sons, as the aversion to inbreeding is rooted deeply in animals and is also responsible for the human incest taboo. Bonobo societies are and seem to live by the slogan, “Make love, not war.” But it started with their economy, when their primary and dominant competitor moved away. In recent studies, the only bonobo sexual coercive acts observed are females abusing males, which is also rare. A likely influence on ending infanticide is that female bonobos, like humans, conceal their ovulation, so males are not cued to compete to be the father. Also, since virtually all bonobos have sex all the time, there is no way for bonobos to determine paternity.
the competitive exclusion principle, ..
Habilines and australopithecines coexisted, and the went extinct about 2.0 mya. Robust australopiths survived to about 1.2 mya (, ), and habilines , so they overlapped the tenure of a species about which there is no doubt of its genus: , which first appeared about 2.0-1.8 mya, and the first fossils are dated to 1.8 mya. is the first human-line species whose members could pass for humans on a city street, if they dressed up and wore minor prosthetics on their heads and faces. had a protruding nose and was probably relatively hairless, the first of the human line to be that way. That was probably related to shedding heat in new, hot environments, as well as cooling its large brain (molecular data with head and body lice supports arguments that the human line became relatively hairless even before australopiths). There are great controversies about that overlap among those three distinct lines that might all have ancestral relationships. Oldowan culture was a multi-species one. There is plenty of speculation that the rise of and its successors caused the extinction of other hominids, driving them to extinction by competition, predation, warfare, or some combination of them. What is certain is that “competing” protohumans went extinct after coexisting with the human line for hundreds of thousands of years. The suspicion that evolving humans drove their cousins to extinction becomes more common as the timeline progresses toward today.