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Who wins?
South American Giant Short-faced Bear 44 (71%)
Andrewsarchus 18 (29%)
Total Votes: 62
South American Giant Short-faced Bear v Andrewsarchus
Topic Started: Jan 13 2012, 10:33 PM (14,642 Views)
Taipan
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Andrewsarchus mongoliensis
Andrewsarchus mongoliensis was a giant mammalian predator of Central Asia and the largest, and most famous member of the mesonychids, a wholly extinct group of prehistoric mammals. The mesonychids were the only known group of ungulates to become carnivorous, and looked vaguely like wolves, with blunt, hoof-like nails instead of claws. Andrewsarchus (Andrews + Greek ἀñ÷üò, "ruler") was named for the famous explorer and fossil hunter Roy Chapman Andrews, who led the expedition on which it was discovered in 1923.
Andrewsarchus is known only from an enormous skull (83 cm long and 56 cm wide) and pieces of bone, but the skull's similarity to that of smaller mesonychids suggests that Andrewsarchus had the same wolf-like body on a larger scale. Extrapolating from the body proportions of similar mesonychids, as well as large land mammals in general, Andrewsarchus was most likely about 4–6 metres (13–18 feet) long, standing nearly 2 metres (6 feet) at the shoulder, and weighing well over 1,500 pounds,[1] making it the largest terrestrial carnivorous mammal known to have ever existed. Based on the proportion comparisons to mesonychids and modern day ursids, it is believed that the largest of the Andrewsarchus may have weighed nearly a ton (close to 2,000 pounds, or 907 kg). It is open to debate whether the animal was gracile or robust in build. It should be noted that modern white rhinoceros specimens are much heavier than these figures, though rhino bodies are about as long.

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South American Giant Short-faced Bear - Arctotherium angustidens
Arctotherium is an extinct genus of South American short-faced bears within Ursidae of the late Pliocene through the end of the Pleistocene. They were endemic to South America living from ~2.0–0.01 Ma, existing for approximately 1.99 million years. Their closest relatives were the North American short-faced bears of genus Arctodus (A. pristinus and A. simus). The closest living relative would be the Spectacled bear (Tremarctos ornatus).
Based on measurements of the fossil's leg bones and equations used to estimate body mass, the researchers say the bear would have stood at least 11 feet tall (3.3 meters) on its hind legs and would have weighed between 3,500 and 3,855 pounds (1,588 and 1,749 kilograms). In comparison, "the largest record for a living bear is a male polar bear that obtained the weight of about 2,200 pounds (1,000 kg)," said researcher Leopoldo Soibelzon, a paleontologist at the La Plata Museum.

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Edited by Taipan, Sep 3 2012, 09:02 PM.
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DinosaurMichael
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Mismatch in favor of the Bear. It weighs more.

Arctodus Simus would be a more fair fight.
Edited by DinosaurMichael, Jan 13 2012, 11:11 PM.
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Mack
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Agree, the bear is almost twice as heavy.
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Apex
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bear so much bigger
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Megafelis Fatalis
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Not sure which one was bigger and i am not sure who would win.
Andrewsarchus skull was 83cm long, imagine the largest skull, it would be around 1m long.
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Panthera tigris soloensis
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What a monstrous beast this bear must have been. Bear just has too much of a weight advantage in this match up!
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Superpredator
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Bear I also wrote a story about this on LTE.
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Superpredator
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^I just remembered i requested this. What if we make the bear 1.1 tons and andrewsarchus 1 ton
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SameerPrehistorica
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The bear would win mostly..
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Superpredator
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Also how come Andrewsarchus has 3 votes
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Arctodus Simus
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1588 - 1749 kilos sounds waaay too much... Given the fact that Andrewsarchus had a 83 centimeter skull I find it hard to belive it was SMALLER than the bear. Andrewsarchus skull were actually wider than the bear's skull was long - it's HUGE. It would've had an amazingly strong biteforce. If Andrewsarchus grabbed the bear's arm it would have break it, if it manage to grab the head it would be the end for the bear.

Andrewsarchus would probably win, but I'm not sure.
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Wolf Eagle
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The Bear wins. It has a great weight advantage, and it has more useful weapons, such as longer, stronger arms, with better claws. It could also grapple.
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Superpredator
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^I also posted to make the bear 1.1 tons and the andrewsarchus 1 ton. 100kg isn't that big a weight advantage
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Wolf Eagle
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Even at parity, I still think that the Bear would win.
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ShadowPredator
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50/50, I think if Andrew can grab hold of one of GSASFB's rear legs (when it's reared up) it can cause the bear to collapse and it can deliver a killing bite. But if the GSASFB can control Andrew's head and throw it to the ground and kill Andrew the bear can win.
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