He exposes a world none of us ever sees: we are face to face with a bowhead whale, a newborn walrus pup, the very pupil of the eye of a macaroni penguin. (bookpage.com)
ii,7,418b27 - 29, iii,2,425b22 - 25), Thomas's physiology is suspect, for he supposes that, when sensing a colour, the pupil of the eye becomes that colour; and that presupposition vitiates the force of the argument. (faith.org.uk)
Presupposing that the pupil of the eye when it sees a colour becomes that colour (i.e., becomes coloured), Thomas notes that, if its object is a coloured flagon, the flagon's colour will impede the pupil's picking up certain colours. (faith.org.uk)