Tooth fossil - reveal the human ancestor's family life secret

Tooth fossil - reveal the human ancestor's family life secret
Tooth fossil - reveal the human ancestor's family life secret
Female australopithecus fossil found in the square red cave of South African Stock, named by the anthropologist " Mrs. Place " (MrsPles) . Can find out about family life and social structure of our ancestor from teeth? This is not false. This is the latest find recently at the time of studying the human ancestor's diet structure of Africa 2 million years before of archaeologists. Compile and the picture is put in order: Gentle intern Li Luo celebrates the source dawn: <> Residual the intersection of strontium and element extrapolate the intersection of scope of activities and Germany of ancestor evolve the intersection of anthropology and Ma Pu science promote Pulan Ke, anthropologist of association, lead, come from the intersection of world and large place to be loud in tooth Researcher studying, lived to some 2 million years ago the human ancestor tooth fossil of South Africa has been carried on deep comparative studied. Recently, they issued the interesting research results on Nature. The researchers have analyzed residual strontium element in these human ancestors' tooth fossil, find differences of inhabiting mode of men and women of that period. The composition in the tooth can reflect the geographical environment of the place that the host of teeth lives. Because strontium element exists in the earth, can be absorbed by the plant at the same time, when these early mankind's ancestor takes plant as the food, strontium element will enter their enamel, and retain. This can provide much information about scope of activities of host's life of tooth for researcher. Female ancient ape of adolescence Choose more " Fly far and high " Through belonging to analysis of the early human tooth fossil of the australopithecus type to these, the researcher finds, half the female ancient apes come from very far place, and the ancient ape of male grows up here. Originally, the female ancient ape of adolescence will leave birthplace for the other places and mate and give birth to the son, but the ancient ape of male will reside at and grow in the ground. It is just the opposite that this follows a lot of researcher original imaginations. In most mammals, the social animal is in procreation in order to prevent the close relative from mating, the male animal entering adolescence will leave the ethnicity, and the female animal will reside. And the mankind goes hunting and gathers the opposite phenomenon exists in social stage but in the chimpanzee. What does this kind of phenomenon mean? A kind of explanation is, perhaps because the male animal with the blood reason relation can defend the foreign invasion better, and this forces the female animal to make more scatteredly. The researcher says, very glad to see the similar continuity from chimpanzee to social structure between the australopithecuses from it. The leaving of female ancient ape Help different colonies to turn enemy into the friend Leave femaly " Her parent's home " Meaning in anthropologist's view of great significance. The early mankind sends from mixing to the tie relation of the spouse establishing type, is considered to be the change that the human ancestor begins to take place for adapting to having more food resources and land. The researchers point out, the men protect the social system of the paternal line through protecting women, can help the women to bring up the offspring at the same time, guaranteed teenagers children in period had fairly long independence growth stage like this, favorable to the development of the human brain too like this. And the brain of the australopithecus is relative and simply small, it means this course has not begun yet. The male and female of the australopithecus mate the appearance of homo erectus 1,800,000 years ago of the relation, just begin to evolve to spouse's relation. The evolution of the tie relation between the spouses brings another far-reaching result, the human individual begins to realize the existence of the relative who has blood relationship with them, the chimpanzee can not accomplish this. When the women dispersed to other colonies, men staying behind to take care of things in the birthplace can tell one's own daughter or sister, there is their relative by affinity, care about the interests of their child too. Change the hostile relation between colony and colony in this way, and turn into ally's relation, thus promote the forming of the human primitive tribe.


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