http://en.wikipedia.org/wiki/Human_nose
The aquatic ape hypothesis relates the nose to a hypothesized period of aquatic adaptation in which the downward-facing nostrils and flexible philtrum prevented water from entering the nasal cavities.The theory is not generally accepted by mainstream scholars of human evolution.
The aquatic ape hypothesis relates the nose to a hypothesized period of aquatic adaptation in which the downward-facing nostrils and flexible philtrum prevented water from entering the nasal cavities.The theory is not generally accepted by mainstream scholars of human evolution.
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