Woolly Mammoths (scientific name Mammuthus primigenius) are extinct herbivorous mammals. These mammoths lived in the tundras of Asia, Europe, and North America. They are closely related to modern-day Indian elephants. Woolly Mammoths lived from the Pleistocene to the early Holocene epoch (about 120,000 to 4,000 years ago). People existed during the time of the mammoths. They were about 11.5 feet (3.5 m) long, 9.5 feet (2.9 m) tall at the shoulder and weighed about 3 tons.