Domestic short-haired cat of colouring, and typically "revert to type" after a few generations, which means they express their coats as a tabby cat. This can be any colour or combination of colours. They also exhibit a wide range of physical characteristics, and as a result, domestic short-haired cats in different countries tend to look different in body shape and size, as they are working from differing gene pools. DSH cats in Asia tend to have a build similar to a "classic" Siamese or Tonkinese, while European and American varieties have a thicker, heavier build. Mixed-breed domestic cats have a form of hybrid
Mackerel 21 species in all—18 of those are classified into the genus "Scomberomorus", two into "Grammatorcynus", and a single species into the monotypic genus "Acanthocybium". In addition, a number of species with mackerel-like characteristics in the families Carangidae, Hexagrammidae and Gempylidae are commonly referred to as mackerel. There has been some confusion between the Pacific jack mackerel ("Trachurus symmetricus") and the heavily harvested Chilean jack mackerel ("Trachurus murphyi"). These have been thought at times to be the same species, but are now recognised as separate species. The term "mackerel" is also used as a modifier in the common names of other