Could just two people repopulate Earth?
The alien predators arrived by boat. Within two years, everyone was dead. Almost. The tiny islet of Ball’s Pyramid lies 600km east of Australia in the South Pacific, rising out of the sea like a shard of glass. And there they were – halfway up its sheer cliff edge, sheltering under a spindly bush – the last of the species. Two escaped and just nine years later there were 9,000, the children and grandchildren and great-grandchildren of Adam and Eve.
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