μὲν τῶν ἄλλων ὁρθὸτατον, τὰ δὲ ζῳοτόκα τῶν ἄλλων τετραπόδων· οὐδὲν γὰρ ὁμοίως τρωγλοδυτεῖ τῶν ζῳοτὸκων, οὕτʼ ἄπουν οὕτε πεζεῦον.
De partibus animalium. Aristotle. ed. Bernhard Langkavel. United States. 2016.
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