| S.T.A.G.E. said: Culture. Everything one group can do the other can as well. Everyone originated from Africa based on bone studies before the migration and everyone split up. We're all cousins. There is also no such thing as race, its a social construct to separate one human group from another. We're all phenotypes. phe·no·type(fē′nə-tīp′) n.
1.
a. The observable physical or biochemical characteristics of an organism, as determined by both genetic makeup andenvironmental influences.
b. The expression of a specific trait, such as stature or blood type, based on genetic and environmental influences.
2. An individual or group of organisms exhibiting a particular phenotype.
Genotypes are just individuals or organisms who come from a similar genepool and express similar outer features. Phenotypes are once genotypes whose outer appearance changed because of exposure to another environment.
Hence...once everyone left Africa they changed. |
I don't know why you're the only one who said this.
Also, let me add this:
Abstract
Races may exist in humans in a cultural sense, but biological concepts of race are needed to access their reality in a non-species-specific manner and to see if cultural categories correspond to biological categories within humans. Modern biological concepts of race can be implemented objectively with molecular genetic data through hypothesis-testing. Genetic data sets are used to see if biological races exist in humans and in our closest evolutionary relative, the chimpanzee. Using the two most commonly used biological concepts of race, chimpanzees are indeed subdivided into races but humans are not. Adaptive traits, such as skin color, have frequently been used to define races in humans, but such adaptive traits reflect the underlying environmental factor to which they are adaptive and not overall genetic differentiation, and different adaptive traits define discordant groups. There are no objective criteria for choosing one adaptive trait over another to define race. As a consequence, adaptive traits do not define races in humans. Much of the recent scientific literature on human evolution portrays human populations as separate branches on an evolutionary tree. A tree-like structure among humans has been falsified whenever tested, so this practice is scientifically indefensible. It is also socially irresponsible as these pictorial representations of human evolution have more impact on the general public than nuanced phrases in the text of a scientific paper. Humans have much genetic diversity, but the vast majority of this diversity reflects individual uniqueness and not race.
http://www.ncbi.nlm.nih.gov/pubmed/23684745
