, is it true??

, is it true ???
Wikipedia, "Cat" article --

domestic cats have rather poor color vision and (like most non-primate mammals) have only two types of cones, optimized for sensitivity to blue and yellowish green; they have limited ability to distinguish between red and green, although they can achieve this in some conditions.

Cat - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Cat#Senses)

Thanks

Better yet, this website Cat Color Vision Cat Vision Eyesight and How Cats See (http://www.kittyshow.com/cat_color_vision.html) explains and shows cat vision very well.