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Medicinisch-Naturwissenschaftlichen Denkschriften der Gesellschaft zu Jena. 185 Zur Entwicklungsgeschichte des Urogenitalapparates von Echidna aculeata var. typica. Mutterboden Hautmuskel 185 dem. Auf der Textfig. 55b erkennt man auf der rechten Seite, wie
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Male echidnas have FOUR-headed penises but scientists crack breeding in captivity | Daily Mail Online
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Australian researchers discover why only two of echidna's four penis heads become erect at one time | Australia news | The Guardian
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Nature's strangest SEX rituals, revealed - from echidnas with four-headed penises to banana slugs that can mate with themselves | Daily Mail Online
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Journal de l'anatomie. mesure du museau au cloaque de l'Platypusis 87 cm. et 18 cm de largeur. Ecliidaa {Echidna aculeata). Comme dans l'Ornithorynque, trois grandes parties de la rate peut être
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Australian researchers discover why only two of echidna's four penis heads become erect at one time | Australia news | The Guardian
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