[Guille]

Originally Posted by michellemfry

Does anyone know about the vision of nocturnal animals? Do they depend on the lack of light to see? We are not the only means of vision that exists. To these animals the darkness may be bright. I don't know if I'm saying this right. I like to try to put myself into the position of other life forms and suppose what it like is for this thing to sense its environment. How is it to fly like a bat and see with sonar? Does light and dark matter to a bat?

When I get my eyes dilated at Lens Crafters, the sun hurts so bad one cannot drive. And night vision is not something we are all good at. Are there any particles that are more responsive to dark than light? We use light to detect particles, why don't we use dark? We are so used to the sun that we have forgotten that other means of vision exist. I've forgotten the question I wanted to ask. Just comment if you like, or if you don't like, I'm not trying to make any point here.

We base on light because darkness is not a-thing, it's no thing. Actually the colour white, which is normally seen as no thing, is all the colours, and black is the lack of colour (in terms of light). No animal can base its sight on darkness. What happens with nocturnal animals is that they 'shoot' out more light than us or other animals; therefore they see darker things brighter due to their own light produced. However, the question is similar to that of whether the glass in front of me is half full or half empty.