The presence of woolly mammoth is well documented. The causes behind the extinction of the woolly mammoth were ambiguous. Its tail was intermediate in length between that of modern elephants and the woolly mammoth. DNA studies have helped determine the phylogeography of the woolly mammoth. Scientists speculate that the atlatl is responsible for the extinction of the woolly mammoth. Distortion in the molars is the most common health problem found in woolly mammoth fossils. The finders interpreted this as indicating woolly mammoth blood possessed antifreezing properties. The resulting calf would have the genes of the woolly mammoth. The diet of the woolly mammoth was mainly grasses and sedges. The Inuit are purported to possess a string figure representing the extinct woolly mammoth. The colder climate supported an assemblage characterised by Woolly mammoth ("Mammuthus primigentius"). One hypothesis is that humans hunted large mammals, such as the woolly mammoth, into extinction. Previous band names included Woolly Mammoth, Are You My Mother? It reappeared 200,000 years ago, alongside the woolly mammoth, and became numerous. The habitat of the woolly mammoth is known as "mammoth steppe" or "tundra steppe".