Do cats or dogs see in colour? and how do they know@?

Answer 1

in dogs the retina, which covers the back of the inside of the eyeball, contains cones and rods-two
types of light-sensitive cells. Cones provide color perception and detailed sight, while rods
detect motion and vision in dim light. Dogs, which have rod-dominated retinas, see better in
the dark than humans do and have motion-oriented vision. However, because they have
only about one-tenth the concentration of cones that humans have, dogs do not see colors
as humans do

Cats can apparently differentiate among colors, especially at close range, but without appreciable subtlety

Answer 2

Both can see colors, but not as well as humans. This can be tested by having animals choose between colored objects that would appear the same shade of grey when seen in black-and white. For example, you could have a set-up with compartments that have differently colored doors, and food hidden behind the blue one. If the test subject can distinguish them, then it can see color. If it keeps picking randomly or by a spatial pattern (such as always picking the left door), then it isn't seeing color.

So far, the evidence indicates that domestic animals can distinguish between different colors, but not between similar shades or variations of a color.

Answer 3

cats and dogs can only see in black,greys and whites.

Answer 4

dogs see in black n'white. Dunno about cats.. or how the know. Perhaps someone asked their pet what colour something was??