Chicken breeds around the world

There are over 150 breeds of chickens around the worlds today. So some of you may be asking how has this happened? All chickens originated from the same source so why are they different? Well it's the same with people and other animals. They adapt to their new surroundings or owners breed them to create a chicken that suits their needs. This is why in the agricultural revolution people began to breed chickens for more meat or eggs. Or why chickens in hotter countries such as Africa and South America have feathers covering their legs to stop themselves getting sun burnt. Or why french nobles in the middle ages made chickens called frizzle chicken. These chicken's feathers grow out backwards so they look more fluffy. The did to make chickens an acceptable upper class pet. This just shows that chickens adapt to the climate, times or demands around the world. I'll post some pictures of them later.