Domestic Short Hairs are the most predominant domesticated cat in the world. Although they originated in Egypt, their body type and weight has slowly evolved over the centuries to adapt to the region of the world where they live. Stocky cats with water-repellent topcoats and dense undercoats that held the warmth evolved in the Northern climates, while smaller, longer, leaner cats with thin, sparse coats that let the heat dissipate developed in the warmer parts of the world.
She's playful - as most short-hairs are. The "random" breeds of short hair are the world's most popular cat. They are typically sturdy and seldom exhibit the overly heavy or the slender bodies of the purebreds. This is the foundation stock for most of the world’s cats!
When more than one cat lives in a household, it may take up to 5 weeks for the newest member of the family to be completely integrated. All pet cats need a territory of their own - even if it's just its own sleeping or eating space! They are usually very friendly with the other cats in the household, but may vigorously defend their "private" spot!
Without human intervention, most of the "unusual" fur color patterns, textures, and head differences would gradually disappear to natural selection.