Cats can't tell who there siblings are. So cats will automatically breed when in heat with there siblings / parents. It is not recommended as there can be complications when the kittens are born.
No, they are not always inbreed they are like every other living cat.
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Calico cats are simply the result of a ginger or tortoiseshell cat and a black or tortoiseshell cat. The only similarities...
Unless you got the cat and pedigree papers from a breeder, it is almost impossible to tell what breed it is. Many breeds and mixed breeds of cats can be black. A breed of a cat cannot be depicted by...