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As you allude later on, selection for environmental fitness is not the only form of selection. Blonde hair need not confer a survival advantage if at one point
by Amezarak 10y ago
As you allude later on, selection for environmental fitness is not the only form of selection. Blonde hair need not confer a survival advantage if at one point it conferred a reproductive advantage. That's sexual selection.
In some cases, traits can be disadvantageous in terms of survival but immensely advantageous reproductively.
- mannykannot 10y ago>In some cases, traits can be disadvantageous in terms of survival but immensely advantageous reproductively. This is a really important part of Darwin's and Wallace's theory - without taking it into account, many traits do not look beneficial, which would be quite a problem for the theory. More controversially (at least at the time), it illustrates that evolution is all about immediate advantage; there is no long-term plan or ladder of progress.