If I'm reading this right, the hypothesis seems to be that in drier climates, humans need longer noses (simplifying) to increase the humidity of the air to an optimal level.
Did the authors propose a counter-evolutionary pressure, to favor a shorter nose in more humid environments?
It's possible that the mechanism would be as simple as "it requires more resources to maintain a longer nose," but I'm also wondering if they suggested anything.
Did the authors propose a counter-evolutionary pressure, to favor a shorter nose in more humid environments?
It's possible that the mechanism would be as simple as "it requires more resources to maintain a longer nose," but I'm also wondering if they suggested anything.