The relation of the shrieking sounds emitted by a capuchin monkey, Cebus griseus F. Cuvier 1819 (1824), to the time of sunrise.
D000818:Animals; D055580:Astronomical Phenomena; D001256:Astronomy; D005260:Female; D000882:Haplorhini / Q000502:physiology*; D008027:Light; D012621:Seasons; D013016:Sound