Scientists speculate why the end of the last Ice Age caused the extinction of some of Earth's largest animals.
Looking at whether the history of early human evolution should be rewritten. For decades, most experts have been convinced that Africa is the cradle of mankind and many fossil finds from Kenya, Ethiopia, South Africa and Chad seemed to prove it.
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Take a journey 6000 years back in time to the late Neolithic and early Bronze ages, which is when the first over-water settlements on stilts, which are described here, were built.
