Why are dogs have better night vision than human beings?

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Why are dogs have better night vision than human beings?

What are lacking for our case compared to them?

2007-07-10 04:51:25 · 3 answers · asked by Anonymous in Health ➔ Optical

3 answers

they have a reflective retina:

http://psychlops.psy.uconn.edu/eric/class/dogvision.html

as well as a threshold for light sensitivity that is like 6x lower than humans

2007-07-10 05:11:53 · answer #1 · answered by princeidoc 7 · 0⤊ 0⤋

They have different retinas. That is why they can't see colors, the B&W sensors do a better job in low light conditions.

2007-07-10 04:54:31 · answer #2 · answered by Steve C 7 · 0⤊ 0⤋

depends on the type of dog. most do. remember dogs only see black and white.

2007-07-10 04:54:36 · answer #3 · answered by Bottle 3 · 0⤊ 0⤋