The Woolly Mammoth is common in the fossil record. Unlike most other prehistoric animals, their remains are often not literally fossilized - that is, turned into stone - but rather are preserved in their organic state. This is due in part to the frozen climate of their habitats, and also to their massive size. Woolly Mammoths are therefore among the best-understood prehistoric vertebrates known to science in terms of anatomy.
Woolly Mammoths lived in two groups (maybe subspecies). One group stayed in the middle of the high Arctic, while the other group had a much wider range.
While large, Woolly Mammoths were not as gigantic as sometimes imagined. In fact, they were not noticeably taller than present-day Asian elephants, though they were heavier. Fully grown mammoth bulls reached heights between 2.8 m (9.2 ft) and 4.0 m (13 ft); the dwarf varieties reached between 1.8 m (5.9 ft) and 2.3 m (7.5 ft). They could weigh up to 8 tonnes.