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more about #speciation more comments → ceilingFANBOY: In a way, you can see this happening with humans. Before anyone jumps on my comment, I am not about to say that people of different races are differe... more » BartholomewFlop: Actually, there are two effects in play in cases of geographic isolation. The first is, as you mentioned, the new hardships or abundances. But the s... more » Shai: I think one of the points is you don't need geographical separation to create new species, not to have beneficial mutations. Standard models of evolut... more » PostMarque: was this study also paid for by the Christian Science Network as seen on GOP more » rek: Geographic isolation is not the definition of natural selection. Natural selection is when that little mutation that turns you from red to green also ... more » CoffinDodger (If the typos crap. Blame my keyboard): Hmmmm how intresting. Now I'll know which geographically challenged chicken i'll be eating tonight..YUM! more » Grey_Area: I can see how a mutation that neither helps nor hinders an organism would get passed along. But if it becomes a dominant trait and that population bec... more » The_Sporean_Bob: While this is certainly interesting, I'm surprised with the claims made here. This isn't exactly completely new knowledge, IIRC: I remember hearing/r... more » grime: if you split up NATURAL selection and SEXUAL selection in terms of evolution, then i guess natural selection would be of no importance at all. the onl... more » 92BuickLeSabre: I feel like I'm missing a step. What else is sexual selection if it isn't tooth-and-nail competition? more » ManchuCandidate: Nonnonononononono! It's all due to the intelligent designer!! IT'S THE INTELLIGENT DEEEEEEEESSSSSSIGNNNNNNNNNNNER!!!!!!!!!! But seriously, who knew... more » -
#evolution
Species Diversity Not Caused By Environment
Accepted scientific wisdom holds that new species arise because of geographic separation - the same bird evolves differently on two different islands. But a new study overturns this idea, challenging the importance of environment as a driver of evolution.
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