Believe it or not, there were still Woolly Mammoths alive and walking the earth when the Egyptians built the pyramids. We don’t mean one of those “the pyramids are way older than you think” things either. A small colony of mammoths survived on Wrangle Island, a small island way up in the arctic. There were as many as 1,000 mammoths living on the island up until around 1650 BC. This is nearly 1,000 years after the construction of the Great Pyramid at Giza.