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. 2017 Dec 12;12(12):e0189390. doi: 10.1371/journal.pone.0189390

Fig 9. Frequencies of external auditory exostosis (EAE) presence.

Fig 9

Box plots for the global recent human samples, with the frequencies for the eastern Eurasian archaic and early modern human samples. The recent human samples are separated into Low (<30°), Middle (30° - 45°) and High (>45°) latitude samples, each separated into coastal/riverine (“wet”) versus inland/terrestrial (“dry”) samples. The numbers of samples, from low and “wet” to high and “dry” are: 30, 22, 14, 19, 13 and 16. The lines are for the maximum eastern Eurasian archaic (EEAH) and early modern (EEEM) human samples (solid lines) and the more conservative ones removing specimens with very small EAE from the frequencies (dashed lines) (see text).