Recent research has revealed that males frequently make "domestic" violence against females. A remarkable is that they make it worthwhile. Males who terrorize the females, they tend to have more offspring than males who behave violently. Scientists in the same breath they add that chimpanzee and human nature are separated by more than seven million years of separate development.
Ian Gilby from Arizona State University and his colleagues analyzed the results of observations of chimpanzee behavior seventeen years in Gombe National Park, Tanzania. According to the study, which was based on the observation, the male to female aggression adaptation. It was shown that males, females who invade and cause them injuries with them then mate more often than males aggressive. A female even in her fertile period are actively searching for these very aggressive males for mating.
The results of DNA analysis in the newborn chimpanzees suggests that long-term male aggression toward females significantly increases the likelihood that his descendants will be blood. The higher in the group hierarchy is male, the more effective this strategy. The researchers also observed that when the male perpetrated violence against female outside its period of fertility is likely to be the father of her descendants. Violence itself, however, have a sexual motivation, males can enforce violence sexual intercourse.
"It turns out that the above status males to females successfully used its long-term strategy of sexual intimidation," says Ian Gilby. It is quite common that females prefer dominant individuals, their dominance, however, usually results from benchmarking with other males. According to scientists in chimpanzees could collude against females develop as a way of dominant male will increase the likelihood that his descendants would be. Its dominant position he recovered not only male but also female - and it is through long-term violence.
According Gilbyho may, for example chimpanzees parallels violent behavior in humans, however, need to be careful in fast conclusions. "While Chimpanzees are our closest relatives, but also separates us seven million years of separate development. In many respects, each very different, "says Gilby.
Source: Ekolist.cz
