My biology teacher has been known for his tall-tales and his variations of the truth...eg he talks a lot of BS but i was wondering, how unnatural are we?? i mean with a lot of animals, birth occurs in a matter of minutes whereas in humans it takes days in extreme cases, mainly hours though, and that would be easy pickings to a predator. So i just want to know, would the human race survive if we had nothing that we have today, bar the knowledge that our ancestors have? or do our chances seem slim? ps, i know that many native tribes and peoples (amazonians, masai, zulus, aborigines etc) have survived while having little contact with 'civilization' but then again they have clothes n other modernised items.