Osteological evidence for the evolution of activity pattern and visual acuity in primates.

@article{Kay2000OsteologicalEF,
  title={Osteological evidence for the evolution of activity pattern and visual acuity in primates.},
  author={Richard F Kay and Ellen Kirk},
  journal={American journal of physical anthropology},
  year={2000},
  volume={113 2},
  pages={235-62}
}
Examination of orbit size and optic foramen size in living primates reveals two adaptive phenomena. First, as noted by many authors, orbit size is strongly correlated with activity pattern. Comparisons of large samples of extant primates consistently reveal that nocturnal species exhibit proportionately larger orbits than diurnal species. Furthermore, nocturnal haplorhines (Tarsius and Aotus) have considerably larger orbits than similar-sized nocturnal strepsirrhines. Orbital hypertrophy in… CONTINUE READING
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