Research reviewed 30 July 2026. Scientific interpretations may change as new evidence is published.
The woolly mammoth, Mammuthus primigenius, was a cold adapted elephant relative that crossed the northern grasslands of Eurasia and North America during the Ice Age. Thick hair, body fat, small ears and curved tusks helped it survive, but some isolated populations lasted until only about 4,000 years ago.
| Fact | Answer |
|---|---|
| Scientific name | Mammuthus primigenius |
| Animal group | Elephant family |
| Time | About 800,000 to 4,000 years ago |
| Fossil locations | Northern Eurasia and North America |
| Habitat | Cold, dry mammoth steppe |
| Diet | Herbivore |
| Shoulder height | Commonly about 3 to 3.5 metres in large adults |
| Mass | Often about 4 to 6 tonnes, depending on sex and individual |
The woolly mammoth was one species within a much larger mammoth family tree. Not every mammoth was woolly, and some other species lived in warmer places or grew larger. Woolly mammoths were true members of the elephant family. Genetic research shows that living Asian elephants are their closest living relatives, but an Asian elephant is not a woolly mammoth descendant.
The scientific name Mammuthus primigenius means "first born mammoth", although later discoveries changed scientists’ understanding of its ancestry. Woolly mammoths evolved from earlier mammoths and developed a collection of features suited to cold, open environments.
The species evolved roughly 800,000 to 600,000 years ago. It spread across northern Eurasia and entered North America by crossing Beringia, a broad region exposed when sea levels were lower.
Most mainland woolly mammoths disappeared about 10,500 years ago. Small island populations survived longer. Mammoths remained on St Paul Island in Alaska until around 5,600 years ago and on Wrangel Island in the Arctic Ocean until about 4,000 years ago.
Their habitat is often pictured as an endless snow field. In reality, much of it was mammoth steppe, a cold and dry grassland with grasses, herbs and scattered shrubs. This productive habitat supported mammoths, bison, horses and many other large mammals.
A large adult woolly mammoth commonly stood about 3 to 3.5 metres at the shoulder and weighed roughly 4 to 6 tonnes, although size varied between sexes and individuals. It was impressive but not the largest mammoth species.
Long outer hairs and a dense undercoat trapped warmth. A thick layer of fat provided insulation and stored energy. Small ears and a short tail reduced the amount of exposed skin that could lose heat or suffer frost damage. A high shoulder hump was created partly by long vertebral spines and supported powerful muscles.
The curved tusks were enlarged upper incisor teeth that grew throughout life. Mammoths may have used them to move snow, gather vegetation, fight, display or protect themselves. Wear marks show contact with the ground, but one single purpose cannot explain every tusk.
Woolly mammoths were herbivores. Preserved stomach contents, dung, teeth and environmental DNA show that they ate grasses, sedges, herbs, shrubs, twigs and bark. The proportions changed with season and location.
Their broad, ridged molars acted like grinding plates. As one tooth wore down, another moved forward from the back of the jaw. This conveyor system worked well for tough, gritty plants, but an old mammoth could eventually run out of replacement teeth.
Bones and teeth occur across the former mammoth steppe. In permanently frozen ground, entire bodies can survive with hair, skin, muscles and stomach contents. These frozen remains reveal details that ordinary skeletons cannot preserve.
Tusks also record growth. Layers added through life can contain chemical clues about diet, movement and stress. DNA recovered from bones, teeth and frozen tissues has revealed relationships, population changes and adaptations to cold.
No intact living mammoth cell has survived. This matters because cloning requires a living nucleus, not only fragments of ancient DNA. Gene editing experiments may introduce selected mammoth like traits into elephant cells, but that would not recreate an original woolly mammoth.
The extinction was probably caused by several pressures. Warming climate changed the open steppe into wetter tundra and woodland in many regions, reducing suitable food and habitat. Humans also hunted mammoths. Scientists continue to study how much each pressure mattered in different places.
The final island populations faced their own problems. On St Paul Island, shrinking freshwater supplies appear important. On Wrangel Island, isolation, small population size and genetic problems may have increased risk, although the exact final event remains uncertain.
Woolly mammoths were not dinosaurs and did not all vanish at once. They lived in cold grasslands rather than only in deep snow, and they were not the largest mammoths ever known. Modern Asian elephants are close relatives, not direct descendants. Finding ancient DNA does not mean a true mammoth can simply be cloned, because cloning also requires an undamaged living cell.
No. It was an Ice Age mammal in the elephant family.
No. Woolly mammoths were one species among several mammoth species adapted to different environments.
They shared a close ancestor with living Asian elephants, their nearest living relatives.
They had long hair, a dense undercoat, thick fat, small ears and a short tail that reduced heat loss.
They ate grasses, sedges, herbs, shrubs, twigs and bark, with the mixture changing by season and place.
No. Much of their habitat was a cold, dry and productive grassland called mammoth steppe.
Most mainland mammoths vanished about 10,500 years ago, but a Wrangel Island population survived until roughly 4,000 years ago.
Climate driven habitat change and human hunting both contributed, while small island populations also faced isolation and local shortages.
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This article is part of the Veilbound Realms prehistoric reference library. Compare it with our Smilodon facts guide to explore another Ice Age mammal.
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