Peoples are usually described as Indigenous when they maintain traditions or other aspects of an early culture that is associated with a given region. Not all Indigenous peoples share this characteristic, as many have adopted substantial elements of a colonizing culture, such as dress, religion or language. Indigenous peoples may be settled in a given region (sedentary) or exhibit a nomadic lifestyle across a large territory, but they are generally historically associated with a specific territory on which they depend. Indigenous societies are found in every inhabited climate zone and continent of the world except Antarctica. It is estimated that there are approximately five thousand Indigenous nations throughout the world.