Early artiodactyl mammal (composite)

Smithsonian National Museum of Natural History

Smithsonian National Museum of Natural History

Efficient Movers
Many herbivores evolved long legs. A longer stride means fewer steps to cover a distance, which saves energy. Long ligaments in the legs allowed standing with less fatigue. Long legs also make animals taller and faster—important for spotting predators and fleeing from them.

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  • Title: Early artiodactyl mammal (composite)
  • Location: Brule Formation, Scotts Bluff Co., Nebraska, United States, North America
  • Physical Dimensions: L: 68 cm W: 20 cm H: 35 cm
  • Type: Fossil
  • Rights: This image was obtained from the Smithsonian Institution. The image or its contents may be protected by international copyright laws. http://www.si.edu/termsofuse
  • Weight: 50 kg
  • USNM Catalog Number(s): V2455, V16825, and others
  • Scientific Name: <i>Miniochoerus gracilis</i>
  • Photo Credit: Donald E. Hurlbert, Smithsonian Institution National Museum of Natural History
  • Historic Period: Lived 37–33 million years ago
  • Geologic Age: Cenozoic - Paleogene - Late Eocene - Early Oligocene
  • Field: Paleobiology


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