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Preferred Label : penis;

Uberon definition : A intromittent organ in certain biologically male organisms. In placental mammals, this also serves as the organ of urination;

Uberon related term : penes; phallus;

Uberon Taxon note : Most male birds (e.g., roosters and turkeys) have a cloaca (also present on the female), but not a penis. Among bird species with a penis are paleognathes (tinamous and ratites), Anatidae (ducks, geese and swans), and a very few other species (such as flamingoes). A bird penis is different in structure from mammal penises, being an erectile expansion of the cloacal wall and being erected by lymph, not blood. It is usually partially feathered and in some species features spines and brush-like filaments, and in flaccid state curls up inside the cloaca;

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A intromittent organ in certain biologically male organisms. In placental mammals, this also serves as the organ of urination

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27/07/2025


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