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radharc an fán/ fauns vision

tá radharc tricrómatic ag fánas dírach mar daoine, ach de bharr go bhuil mac imrisc i bhad níos mó acú, tá súile an-soghonta le solas. is é seo an fáth go ní bhíonn siad taobh amuigh sa lá.

fauns have trichromatic vision just like humans, but because they have very wide pupils they're extremely sensitive to light. this is why you rarely see them outdoors during the day.

pictúir 1: comparáid idir radharc daoine agus radharc fánas ag clapsholas an oíche/ camparison of human and fauns vision at dusk

pictúir 2: súil ó fán caoríon bán dearg, is fedir an imreasc agus an imrisc a feicáil go soléar/ an eye of a heatherhorn faun, you can see the iris and the pupil clearly

AND HIS EPISODE TITLE IS: "PUCCINI AND THE DOCTOR"

What's the first question that really pops into peoples' minds about Ea-Nasir? I'm trying to write this history down, but I'm struggling.