If you did not know about cats ...

Cats have a high learning ability and memory, which are used primarily for the information that they are of some use. These include above all her favorite foods.

Cats who live outdoors remember well the limits of its territory, known cats that appear in this area as well as dangerous dogs. Associative memory allows the cat to solve a new problem by comparing it with already experienced. In this way, no problem to understand the interrelations between events and react to new, previously unknown situation.

Cats are known for their purity, and method of cleaning involves licking their own fur.

 

Cats have excellent night vision and can see 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.

though wildcats are solitary, the social behavior of domestic cats is much more variable and ranges from widely dispersed individuals to feral cat colonies that form around a food source, based on groups of co-operating females. Within such groups one cat is usually dominant over the others.Each cat in a colony holds a distinct territory, with sexually active males having the largest territories, which are about ten times larger than those of female cats and may overlap with several females' territories.These territories are marked by urine spraying, by rubbing objects at head height with secretions from facial glands and by defecation.Between these territories are neutral areas where cats watch and greet one another without territorial conflicts. Outside these neutral areas, territory holders usually chase away stranger cats, at first by staring, hissing, and growling, and if that does not work, by short but noisy and violent attacks. Despite some cats cohabiting in colonies, cats do not have a social survival strategy, or a pack mentality and always hunt alone.