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How we calculated the age of caves in the Cradle of Humankind -- and why it matters: Beautifully preserved flowstone and sediment layers from the Cradle of Humankind. Dr Robyn Pickering, Author providedAs a species, we humans have always been fascinated in where we came from. Initially, it was believed humans couldn’t have originated from Africa. That misconception began to … [Read more...] about How we calculated the age of caves in the Cradle of Humankind — and why it matters | The Conversation