Cats are one of my favourite animals, and therefore, I put pictures of them. In my opinion, cats are one of the cutest animals. I may be allergic to them, but just by looking at the pictures, you have to admit, they do look cute. I will now give you some info on cats.
Cats have excellent night vision and can function at only one-sixth the light level required for human vision. This is partly the result of cat eyes having a tapetum lucidum, which reflects any light that passes through the retina back into the eye, thereby increasing the eye's sensitivity to dim light. Another adaptation to dim light is the large pupils of cats' eyes. Unlike some big cats, such as tigers, domestic cats have slit pupils. These slit pupils can focus bright light without chromatic aberration, and are needed since the domestic cat's pupils are much larger, relative to their eyes, than the pupils of the big cats. Indeed, at low light levels a cat's pupils will expand to cover most of the exposed surface of its eyes. However, domestic cats have rather poor color vision and can only see two colors: blue and green, and are less able to distinguish between red and green, although they can achieve this in some conditions.
Cats can suffer from a wide range of health problems, including infectious diseases, parasites, injuries and chronic disease. Vaccinations are available for many of these diseases, and domestic cats are regularly given treatments to eliminate parasites such as worms and fleas.
(I thought only dogs could get fleas!)
In captivity, an average life expectancy for male indoor cats at birth is 12 to 14 years, with females usually living a year or two longer. However, there have been records of cats reaching into their 20s and 30s, with the oldest known cat, Creme Puff, dying at a verified age of 38.
I got this info at http://en.wikipedia.org/wiki/Cats.
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