They were still around after the construction of the Great Pyramid of Giza. via unexplained-mysteries Headline Image Credit: Charles R. Knight A new study has shown that some Ice Age mammals survived much longer than previously thought. While it is easy to imagine that giant Ice Age mammals such as the woolly mammoth and the woolly rhinoceros died out long before the advent of human civilization, research in recent years has shown that these animals survived much longer than anyone had realized. Previous studies had indicated that while most mammoths likely died out around 10,000 years ago, a few had managed to survive in small populations on remote islands off the coast of Siberia. There had even been suggestions that some of these isolated island populations had held on until around 4,000 years ago. Now though, the results of a ten-year study involving the collection and analysis of 535 samples of sediment and permafrost from Siberia, Canada, Alaska and Scandinavia have yielded