Most people have absolutely no idea just how many different types of chickens there are across the globe. Each type of chicken is a unique species that is bred for different reasons and purposes. Some are bred for meat, others for egg production, and still others are bred primarily for show. This article takes a look at several different types of chickens, including a brief physical description, their origin, and what they are bred for. Please note that this is not an exhaustive list, but rather, a sampling of various species.