Not to be confused with Penix. This article is about penises of animals in general. For the human organ, see human penis. Several terms redirect here. For other uses, see Penis (disambiguation), Penes (disambiguation), and Penile, Louisville.
A penis (plural penises or penes (/-niːz/)) is the primary sexual organ that male animals use to inseminate females (or hermaphrodites) during copulation.[1][2] Such organs occur in many animals, both vertebrate and invertebrate, but males do not bear a penis in every animal species, and in those species in which the male does bear a so-called penis, the penises in the various species are not necessarily homologous.
Ah, Penix, the Unix distribution for HP-FUX systems.