Illustration of Arctodus
|Height||2 metres on all fours, 4 metres on two legs|
|Lived||800,000 to 10,000 years ago|
The short-faced bear could weigh more than 900 kilograms, which would make it the second-largest known bear after its South American relative Arctotherium. It was similar in shape to modern grizzly bears, although they are not related to the Arctodus genus.
Short-faced bears were part of the bear subfamily Tremarctinae. Their closest living relative is the spectacled bear of the genus Tremarctos. There are two species in the genus: A. simus and A. pristinus.
The genus Arctodus was described by Joseph Leidy in 1854.
The short-faced bear was most probably a carnivore, as analysis of its bones showed high concentrations of nitrogen-15, which is an isotope accumulated by carnivores. Some authors also suggest that the short-faced bear was omnivorous much like many modern bears.
- ↑ Figueirido et al. (2010). "Demythologizing Arctodus simus, the ‘short-faced’". Journal of Vertebrate Paleontology 30 (1): 262–275. doi:10.1080/02724630903416027.
- ↑ Soibelzon, L. H.; Schubert, B. W. (January 2011). "The Largest Known Bear, Arctotherium angustidens, from the Early Pleistocene Pampean Region of Argentina: With a Discussion of Size and Diet Trends in Bears". Journal of Paleontology (Paleontological Society) 85 (1): 69–75. doi:10.1666/10-037.1.
- ↑ Cope, E. D. 1879. The cave bear of California. American Naturalist, 13:791.
- ↑ S. Legendre and C. Roth. 1988. Correlation of carnassial tooth size and body weight in recent carnivores (Mammalia). Historical Biology 1(1):85-98
- ↑ J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Uhen]
- ↑ "The Biggest Bear ... Ever". Nancy Sisinyak. Alaska Fish and Wildlife News.
- ↑ ScienceDaily, 13 April 2009. "Prehistoric Bears Ate Everything And Anything, Just Like Modern Cousins". ScienceDaily.