καὶ νῦν
From LSJ
ὑπὸ δὲ τῆς φιλαυτίας παρηγμένοι ἄλογα φασὶν τὰ ζῷα ἐφεξῆς τὰ ἄλλα σύμπαντα → it is self-love which leads them to say that all the other animals without exception are non-rational
English (LSJ)
A so now, Hom., mostly to confirm a general statement by an example, e. g. Il.1.109; ὡς κ. ν. Od.1.35; κ. ν. ἦ τοι 4.151.