Austrarapor vs Brown bear

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Tyrant king

NoobMember0 XPJan-06-2015 7:31 PM

bear vs. austro

tyrant king vs carnosaur.

carno has bear, king has austro.

16 Responses to Austrarapor vs Brown bear


NoobMember0 XPJan-06-2015 7:36 PM

well shoot, i thought i'd be defending austro but oh well haha

 Edit: X. hodsonae had an overall body mass estimate of 118kg(260lbs)

^Nasal aperture area and body mass in felids : Ecophysiological implications and paleo-biological inference(Toregrossa)


so i'm not sure if this is exactly a fair match? A.cabazi had a weight estimate of ~368kg.

^ from  "A bizarre Cretaceous theropod dinosaur from Patagonia and the  evolution ofGondwanan dromaeosaurids" (novas, pol 2009)

Nature doesn't deceive us; it is we who deceive ourselves.

Tyrant king

NoobMember0 XPJan-06-2015 7:39 PM

Austraraptor was a dromeosaurid that was about 14 to 17 feet long. 5 to 7 feet tall. And 700 to 900 pounds.and had somewhat small claws and long narrow jaws. But this didn't stop him from dominating  ancient Patagonia. Combined speed, intelligence, strength, and agility. This was just the right predato. While the xeno attacks, the austrpraptor will outflank the quadruped and nip at its sides.



NoobMember0 XPJan-06-2015 7:46 PM

read my edit, this is a pretty large mismatch in favor of the dromaeosaur...

Nature doesn't deceive us; it is we who deceive ourselves.


NoobMember0 XPJan-06-2015 8:22 PM

a large brown bear male isn't a force to be reckoned with. here are a few accounts demonstrating the strength of the bear...

"I observed the incident from the road on the west sideof the Yellowstone River near the outlet of YellowstoneLake (elevation 2,371 m) on the morning of 23 September2000. I was observing a grizzly bear with 2 cubs-ofthe-year that were digging for pocket gophers (Thomomystalpoides) in a meadow 300–400 m from the Lake Lodge.This family group had been frequenting the area throughoutthe summer. At approximately 1200 hours, the bearsbegan walking northeast along the shore of Yellowstone Lake toward the Yellowstone River outlet at Fishing Bridge. At approximately 1300, the bears emerged onto the road at Fishing Bridge Junction and crossed to the north side. The bears continued walking north in a direction that would have taken them past a young adult bull bison lying under a tree 15 meters from the road. The bison stood up abruptly when the bears were approximately 5 meters away. When the bison stood up, the bears appeared startled. The adult female, then the cubs, stood up on their hind legs and looked at the bison. The bison stood in an alert posture with his tail raised and head down.
After a few seconds, the adult bear lunged toward the bison.
The bison immediately turned away and began trotting east, up slope along a bench directly above the road heading toward Fishing Bridge. The adult bear loped after the bison at less than full speed.
I drove east along the road, observing the movement of the bears and bison approximately 15 meters away. After trotting about 50 m, the bison broke into a full run. The adult bear then chased the bison at full speed. At the crest of the hill above the Yellowstone River, the bear swiped its paw across the hindquarters of the bison, knocking the bison’s back legs out from under it. The bison began to slide down the steep embankment of the hill on its back. After striking a tree with considerable force on its front quarters, the inverted bison continued to slide toward a pedestrian boardwalk at the base of the hill. The grizzly leaped onto the stomach of the inverted bison and skidded down the hill on top of it while attempting to bite at the bison’s neck. The bear and bison came to a stop at the base of the hill on the pedestrian boardwalk. The bear continued to bite and pull at the bison’s neck while the bison tried to get to its feet. The bison managed to stand and struggled to remain standing, but the bear continued to pull the bison back down to the ground. When the bison did stand, its hind legs buckled under its own weight. The bear took advantage of this and jumped onto the back of the bison, biting and clawing at its back, inflicting a number of bite and claw wounds around the bison’s hump and lower back. With a quick head motion, the bull managed to free itself from the bear and stand up a second time. At this time, I observed that the bison’s left front leg was broken. This injury may have occurred when the bison slammed into the tree while sliding down the steep hill. The bison continued attempts to stand and fought off the bear with its head and horns for several minutes. The bear stood up on its hind legs and swiped at the bull’s head with its paws. The bison reacted by rearing up, which caused it to slide backward into a ditch adjacent to the Fishing Bridge boardwalk. Being in the ditch appeared to put the bison in a better position to fend off the bear with its head and horns.
At this time the 2 cubs, which had been observing their mother from on top of the hill, came down and reunited with her near the bison. The bison continued to struggle to keep up-right and bled profusely from its back and hindquarters. The adult bear attacked the bison several more times, but the bison was able to use its head and horns to repel the attacks. The cubs did not participate in these attacks but remained nearby. On 5 occasions the bears left the area and were no longer visible to me, then came back and the adult attacked the bull again, but was unable to kill it. The interval between attacks increased from approximately 5 minutes to several hours between return visits.
At approximately 1800 the bears left and did not return, enabling me to investigate the bison in the ditch. The bison was startled upon my approach and attempted to climb out of the ditch. It fell down and was unable to pull itself out of the mud. Due to the proximity of the bison to the main road and concerns for the safety of visitors and a construction crew working on the road bridge adjacent to the attack site, park management decided to dispatch the bison and move the carcass. After shooting the bison, the carcass was moved 0.9 km away to a location remote from public use areas. Managers hoped that the bear family group would follow the scent trail to where the carcass was disposed and scavenge the remains."

assumng this is a big russian male brown bear ~(380kg) things get worse for the raptor.

their jaws are very impressive

 at ~200kg U. arctos bit with 1400N at the canines

and, besides this i think the austroraptor wouole have great difficulty. especally considering the fact that the bears fur and fat content would prove tough for the theropo to get through (tigers have issues with this)

taking into account that Austroraptor doesn't have a very robust skull -- but instead a thinner, elongated skull and reduced length of the forelimbs,(A bizarre Cretaceous theropod dinosaur from Patagonia and the  evolution of Gondwanan dromaeosaurids" (novas, pol 2009)) i could see it struggling immensly with a similarly sized bear.

Nature doesn't deceive us; it is we who deceive ourselves.

Tyrant king

NoobMember0 XPJan-06-2015 8:24 PM

You're wining.all this shoes is a bear bring outsmarted by a bison.


NoobMember0 XPJan-06-2015 8:27 PM

shweeeetttt :D

Nature doesn't deceive us; it is we who deceive ourselves.

Tyrant king

NoobMember0 XPJan-06-2015 8:31 PM

The claws and arms of austrpraptor would still be very large and powerful . And would be agile enough to didge the Bears attacks and latch onto the bears sides and begin prey riding it and begin hacking and slashing and biting the bear and liking it.


NoobMember0 XPJan-06-2015 8:38 PM

Outsmarted? not so sure. overpowered and broke its limbs? yep.

they also take adult moose an elk, which is no easy feat.

Nature doesn't deceive us; it is we who deceive ourselves.


NoobMember0 XPJan-06-2015 8:43 PM

do you have something suggestng it could use its forelimbs very effectivly at all against the bear?

because, again, they're very short and do not look lke they'd be able to reach very far. and in the position they are, getting that up close to the bear would be a bad move.

Nature doesn't deceive us; it is we who deceive ourselves.

Tyrant king

NoobMember0 XPJan-06-2015 8:44 PM

At the end of the day, the bear lost and the bison won.

and the austraraptor could rather easily hunt deer and elk.

The large claws would have no problem cutting through the flesh, fat, and fur of the bear. And the bears claws are fairly dull since the bear is digging around in the ground for berries. While the dromeosaurids claws would be razor sharp. And i could say that the thick hide and feathers of the raptor could protect it. 

and the raptor could rear up and slash or out flank the bear and destroy the Bears sides.


NoobMember0 XPJan-06-2015 8:56 PM

the bear dealt out injuries to the bison that ultimately ended up in it being killed, and the bison did nothing to the bear. the bear left ost likely because it had cubs it needed to take care of. the bears claws aren't really dull, but are meant to tear through things.

again, the forelimbs are likely too small for the dromaeosaur to even effectively use them here. and, again, rearing up in this close of proximity to the bear is just a dumb manuever -- it'll make the theropod go off balance and the risk of the bear charging and bowling the theropod over is too great.

rearing up to such a degree would probably be impractical any way, given how short its forelimbs are.

Nature doesn't deceive us; it is we who deceive ourselves.


NoobMember0 XPJan-06-2015 8:59 PM

adding to my above post, 

"The forelimbs of Austroraptor are notably reduced withrespect to hindlimb length, constituting an exceptionaldeparture from the characteristic long-armed constructionof dromaeosaurids (Gauthier 1986; Padian & Chiappe1997; figure 2b). In particular, the forelimb length reduction do***ented in Austroraptor is in sharp contrastwith the considerably elongated forelimbs of the smaller unenlagiines"

^from novas & pol 2009. i do not see any way for the theropod to use its forelimbs to any sgnificant degree, let alone cuttng through the fat and fur of the bear. given how we do not have a claw length to go off of, and retrospective to the size of its arms, i don't think we can postulate the unenlagine doing this to any degree.

additionally, the long narrow snout of the drom would be particularly innefective at killing similarly sized animals -- as it appears A. cabazi is as a whole.

Nature doesn't deceive us; it is we who deceive ourselves.


NoobMember0 XPJan-07-2015 12:20 AM

While I usually say that without a dought in my mind the dino would win, this particular raptor just dosnt have the firepower to take on a bear of this size. In fact from what glances Ive taken at Austraraptor it seems to have been a dino that hunted prey smaller and less robust than itself.

P.S. Sorry for busting in but this fight is so lopsided its imposable to not see that their in completely differant leagues.

" It is better to be reviled than ignored, agleast then you know your spreading good in this world." 


NoobMember67 XPJan-07-2015 10:21 AM


Let me just say this: the raptor doesn't stand a chance. Bears can cruch the skull of a moose in one blow bear could easily win

Tyrant king

NoobMember0 XPJan-07-2015 3:33 PM

I will go against the odds and against everyon(as usual).


NoobMember0 XPJan-07-2015 3:59 PM

waiting on your response to my post above.

Nature doesn't deceive us; it is we who deceive ourselves.

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