To determine whether a black cat is a black cat, we should pay attention to carefully observe whether the coat color of a black cat is pure black. Under normal circumstances, the black cat's hair will have a faint red color, which is more obvious in the sun. Secondly, under the same environment and light source, black cats are easier to be found, while black cats are easier to hide and their fur is getting darker and darker.

First of all, we need to know about mysterious cats, usually cats with red in black, especially facial hair. Black cats are all black, and their fur is darker and darker than black cats.

Compared with black cats, the gloss of black cats' fur color is relatively poor. Under the sunlight, the hair on black cats will appear reddish. Black cats, on the other hand, will be darker and brighter.

When the light is dark, under the same light, the probability of finding a mysterious cat is far greater than that of finding a black cat, which is easier to hide. Black cats are usually called mysterious cats, which are just general names, not specific ones.