# De partibus animalium 13.1

Aristotle, De partibus animalium, Β., Chapter 13. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/aristotle/de-partibus-animalium/13.1

13 Καὶ οἱ μὲν ἅνθρωποι καὶ οἱ ὅρυιθες καὶ τὰ ζῳοτόκα καὶ τὰ ᾧοτόκα τῶν τετραπόὅων φυλακὴν ἔχουσι τῆς ὄψεως, τὰ μὲν ζῳοτόκα βλέφαρα δύο, οἷς καὶ σκαρδαμύττουσι, τῶν δʼ ὀρνίθων ἅλλοι τε καὶ οἱ βαρεῖς καὶ τὰ ᾧοτόκα τῶν τετραπόδων τῇ κάτω βλεφαρίδι μύουσιν· σκαρδαμύττουσι δʼ οἱ ὅρυιθες ἐκ τῶν κανθῶν ὑμένι. τοῦ μὲν οὖν φυλακὴν ἔχειν αἴτιον τὸ ὑγρὰ τὰ ὄμματα εἶναι, ἵνα ὄξύ βλέπωσι τοῦτον τὸν τρόπον ὑπὸ τῆς φύσεως. σκληρόδερμα γὰρ ὄντα ἀβλαβέστερα μὲν ἂν ἦν ὑπὸ τῶν ἔξωθεν προσπιπτόντων, οὐκ ὀξυωπὰ δέ.

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Aristotle, De partibus animalium, ed. Bernhard Langkavel. Text: The Greek Library, from the Perseus Digital Library and other open sources, CC BY-SA 4.0. Changes: apostrophes normalised and the text divided into reading sections by Interlinea.
License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Source: https://thegreeklibrary.pages.lisn.upsaclay.fr/works/tlg0086.tlg030.local001/.