Dinosaurs

Columbian Mammoth. Arizona Natural History Museum.

The Columbian mammoth (Mammuthus columbi) is an extinct species of elephant of the Quaternary period that appeared in North America (in the present United States and to as far south as Nicaragua and Honduras) during the late Pleistocene. The mammoth was one of the last members of the American megafauna to go extinct, with the date of disappearance generally set at approximately 12,500 years ago. The mammoth was a savanna and grassland inhabitant, similar to the modern African elephant. Large males ranged from 12–13 ft and weighed between 7.7–9.9 short tons with spiralled tusks that could grow up to 13.9 ft long.
ColumbianMammoth_ANHM130902 © Don Tibbits

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