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Cat Forum / Health and Behavior / February 2007Do cats see everything in black and white?
Do cats see everything in black and white? This is what I read: Tests have shown that cats differentiate between green, blue and yellow, but do not recognize red. In normal life, color appears meaningless to cats. Is that true? Alex www.PersianKittenEmpire.Com I watched a cat documentary years ago, and it said they see red and green as black and white. It did say they can see some blues and yellows. Their eyes are set up to detect motion and colors aren't that important for them. Rhonda > Do cats see everything in black and white? > [quoted text clipped - 4 lines] > Alex > www.PersianKittenEmpire.Com "Rhonda" <san-toki@att.remove.net> wrote in message > I watched a cat documentary years ago, and it said they see red ... Maybe so they can "see" blood? but.. how would God make a creature so perfect and not give them High Definition video Rhonda I bet they see in full color > "Rhonda" <san-toki@att.remove.net> wrote in message > [quoted text clipped - 6 lines] > > I bet they see ... Of course they see. They see lots of things. > Do cats see everything in black and white? > > This is what I read: Tests have shown that cats differentiate between > green, blue and yellow, but do not recognize red. In normal life, > color appears meaningless to cats. Is that true? When I was in junior high, we noticed that my cat really liked to sit on my mom's lap when she was wearing a pink robe, but did not sit on my lap sp much. My robe was green. For christmas, I got a pink robe, and my cat immediately spent a lot more time on my lap. A couple years later, I asked my biology teacher about it, and he believed that they see some shades, maybe not as much variety as we do. But that maybe some colors stand out bit more and seem more attractive. > A couple years later, I asked my biology teacher about it, and he > believed that they see some shades, maybe not as much variety as we > do. But that maybe some colors stand out bit more and seem more > attractive. Hi Colors are assimilated in the mind right? I dont' understand how anyone can ascert which colors are being seen. It is not the mind that interprets colors, it is the rods that are contained in the eye and cats do not have as many as humans. I am sure they see color, but I would doubt that they see the array of colors that humans do. >> A couple years later, I asked my biology teacher about it, and he >> believed that they see some shades, maybe not as much variety as we [quoted text clipped - 6 lines] > >I dont' understand how anyone can ascert which colors are being seen. > It is not the mind that interprets colors, it is the rods that are > contained [quoted text clipped - 12 lines] >> >>I dont' understand how anyone can ascert which colors are being seen. Rods are best for low light situations and for observing sudden movement (idea for a cat stalking prey). Cats also have a tapetum in the back of the eye that reflects light back through the rods, enabling cats to see in much darker situations than humans. Cones allow us to see colors. Cats do have some cones but not nearly as many as humans do. One article I read stated that cats can differentiate red from blue but have difficulty differentiating red from green. > Rods are best for low light situations and for observing sudden movement > (idea for a cat stalking prey). Cats also have a tapetum in the back of [quoted text clipped - 3 lines] > read stated that cats can differentiate red from blue but have difficulty > differentiating red from green. Typo alert--should say "ideal" for a cat - - >>A couple years later, I asked my biology teacher about it, and he >>believed that they see some shades, maybe not as much variety as we [quoted text clipped - 6 lines] > > I dont' understand how anyone can ascert which colors are being seen. Colors are refracted light waves so each color has a unique wavelength. Hence, we can tell what living being sees what color by examining the receptors in their eyes. That said, no one knows if we all see color the same, but "red is red," as far as wavelengths go. > Do cats see everything in black and white? > [quoted text clipped - 3 lines] > > Alexwww.PersianKittenEmpire.Com So why does one of our cats prefer red balls to play with than any other color? -yngver >>Do cats see everything in black and white? >> [quoted text clipped - 7 lines] > other color? > -yngver Red would probably appear black. Maybe it's easier to see because it would appear very dark to them and the other colors would appear as pastels. Here's an excerpt from this website: ---------------------------------------------- http://www.animaleyecare.com/learn.htm VISION IN ANIMALS COLOR VISION? There are two types of cells in the retina that receive light: rods and cones. Rods are for sensing motion and work best in low light levels. All mammals, including people, have more rods than cones. Cone cells are adapted for seeing in brighter light and can detect different colors of light. Humans have three types of cones. Dogs have two types of cones. Evidence suggests that the dog has vision similar to a human who is red-green color blind. Cats have three types of cones, like people, but do not have exactly the same color vision as we do. Cats live in a world of fuzzy pastels. Dogs and cats appear to respond to blue and yellow best, and seem to have more trouble with green and red. What appears red to us is simply dark to the dog and cat, and green light is almost indistinguishable from white (a shade of gray). Colors that would appear very rich to us are more pastel-like to the cat. The cat sees a green, grassy lawn as a whitish lawn, and a green rose-bush as a whitish bush with dark flowers. ----------------------------------------------- Rhonda |
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