/sci/ - Science & Math

>>9310757

A-Arizona actually. W-We're not actaully brothers...w-we can still have sex if you want to though...

1. Biologists use different definitions of species depending on the type of biologist they are. There are tons of different concepts to choose from.
2. The biological species concept is the most widely accepted if what defines a species; however, it's flaws are that you can't test asexually reproducing species, fossils, and even hybrids sometimes can produce fertile offspring.
3. Then when creating a tree, we need to determine the traits we're weighing to define a sub-species is different enough to be considered different.

I think it's reasonable to accept there are differences between races because there has been geographic isolation between people, surely enough time has passed for a Northern European who is subject to different environmental pressures than someone Central Africa. If more time passed with isolation, we probably would be considered different species...Maybe in the distant future because at the moment there is both geographic and behavioral isolation between Europeans and Africans.

I'm still in my General Biology II course, so I don't know anything yet, but this is just what I think at the moment.