/sci/ - Science & Math

>>12132597
>uh yeah?
Then you're irrational.
>This article is unable to explain all the evidence put forward.
The evidence was the point. You asked for a source that brain size evolved to be different among different groups, I gave it to you. The reasons why it did are irrelevant.
>it specifically refutes your assumption of brain size => smarter
It's wrong on that point. The correlation with IQ is well established by other studies.
>Doesn't sound like humans.
Doesn't sound like wolves either. They even interbeed with different species !

>>12066104
>blacks and white overlap
Only since we artificially brought individuals from those subspecies to the territory of the other. It didn't happen naturally. If these artificial changes are more important to you than their originally separated locations, then you have to count hybrids of different species happening in zoos as proof that they are not different species.
>>12066063
>Their paths have rarely crossed.
Define rarely. How many "natural" hybrids do you need to consider different species as the same ? And again, how many "natural" hybrids of subsaharans and europeans, or aboriginals and chinese, ever existed ?
But if you want species with more natural hybrids, there's wolves and coyotes for example. Should we consider them the same species and the same subspecies ?

>>11968468
Oh, now you start talking about grey wolves without acknowledging that what you were saying about red and eastern wolves was irrelevant ?

> Most North American wolves are admixed to some degree.
Yes, to various degrees. Despite that, the article doesn't challenge the classification of Coyotes and Grey Wolves as different species, only those of the highly hybridized populations known as red and eastern wolves that you went on and on about for no reason.
If their genetic distances are comparable to that of human groups, and if that doesn't make them one species and one subspecies, that means that human groups can be classified into different subspecies, or species.

Going beyond that study, you can also ask yourself : should grey wolves and coyotes be assumed to be identical ?