MSD Manual

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Immature phallus, ostrich
Immature phallus, ostrich

    Immature phallus from a 6-month-old ostrich. The phallus lies on the ventral aspect of the cloaca and, when stimulated in a mature male, extends out of the vent. Note the dorsal groove, which helps direct the ejaculate into the female ostrich during copulation.

Courtesy of Dr. Karen Hicks-Alldredge.

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Reproduction of Ratites