In some animals, the male penis possesses a muscle enabling retraction into the prepuce.

You can help expand this article with text translated from the corresponding article in German. (March 2013) Click [show] for important translation instructions.

View a machine-translated version of the German article.
Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia.
Consider adding a topic to this template: there are already 1,945 articles in the main category, and specifying|topic= will aid in categorization.
Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article.
You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing German Wikipedia article at [[:de:Musculus retractor penis]]; see its history for attribution.
You may also add the template {{Translated|de|Musculus retractor penis}} to the talk page.
For more guidance, see Wikipedia:Translation.

In particular animals

References