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Who wins?
Sloth Bear (Sow) 4 (44.4%)
Deinonychus antirrhopus 5 (55.6%)
Total Votes: 9
Sloth Bear (Sow) v Deinonychus antirrhopus
Topic Started: Mar 25 2018, 08:46 PM (663 Views)
Taipan
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Sloth Bear (Sow) - Melursus ursinus
The sloth bear, also known as the labiated bear, is a nocturnal insectivorous species of bear found wild within the Indian subcontinent. The sloth bear evolved from ancestral brown bears during the Pleistocene and shares features found in insect-eating mammals through convergent evolution. The population isolated in Sri Lanka is considered as a subspecies. Unlike brown and black bears, sloth bears have lankier builds, long shaggy coats that form a mane around the face, long sickle shaped claws, and a specially adapted lower lip and palate used for sucking insects. Sloth bears breed during spring and early summer and give birth near the beginning of winter. They feed on termites, honeybee colonies and fruits. Sloth bears sometimes attack humans that encroach on their territory. Adult sloth bears are medium-sized bears: female weight can range variously from 55 to 124 kg (121 to 273 lb)

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Deinonychus antirrhopus
Based on the few fully mature specimens, Deinonychus could reach 3.4 metres (11.2 ft) in length, with a skull length of 410 mm (16.1 in), a hip height of 0.87 metres (2.9 ft) and a weight of 73 kg (161 lb), though there is a higher estimate of 100 kg (220 lb) Its skull was equipped with powerful jaws lined with around sixty curved, blade-like teeth. Studies of the skull have progressed a great deal over the decades. Ostrom reconstructed the partial, imperfectly preserved, skulls that he had as triangular, broad, and fairly similar to Allosaurus. Additional Deinonychus skull material and closely related species found with good 3D preservation show that the palate was more vaulted than Ostrom thought, making the snout far narrower, while the jugals flared broadly, giving greater stereoscopic vision. The skull of Deinonychus was different from that of Velociraptor, however, in that it had a more robust skull roof like that of Dromaeosaurus, and did not have the depressed nasals of Velociraptor. Both the skull and the lower jaw had fenestrae (skull openings) which reduced the weight of the skull. In Deinonychus, the antorbital fenestra, a skull opening between the eye and nostril, was particularly large.

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Palaeoscincus
Mar 25 2018, 11:57 AM
Deinonychus antirrhopus vs Sri Lankan sloth bear. Its smaller than mainland sloth bears and could be interesting.


I couldnt find a weight (or weight range) for the Sri Lankan subspecies, so just used a female Sloth Bear, given the interest created by the recent Tiger v Sloth Bear sow video.
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Lightning
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At similar weights, the deinonychus wins with superior weaponry, durability and killer instinct.
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Black Ice
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The bear is gonna win.
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Cat
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Even if I'm not a big fan of the toothed turkey, I think that at parity its mobility and aggressiveness should give it the edge. It would not be an easy fight however, the bear thick and coarse fur would provide a good protection against the raptor's claws.
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Black Ice
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The bear would win simply because the raptor method of killing is inefficient against heavy framed predators like bears.

Mobility would be irrelevant because this is going to be a grappling match.
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Mauro20
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Cat
Mar 25 2018, 11:13 PM
Even if I'm not a big fan of the toothed turkey, I think that at parity its mobility and aggressiveness should give it the edge.
What? How do you know the deinonychus was more aggressive?

Anyway, I think the bear will win more often than not.
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Ausar
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Black Ice
Mar 25 2018, 11:50 PM
The bear would win simply because the raptor method of killing is inefficient against heavy framed predators like bears.

Mobility would be irrelevant because this is going to be a grappling match.
So do you now favor bears over dromaeosaurs at overlapping weights?

I'm not sure if I really agree (especially if they're at parity or something, though I agree such a fight would be close), but what, in your opinion, would happen if the dromaeosaur itself had a really heavy frame (e.g. Utahraptor)? Is the dinosaur’s killing method still not going to cut it despite its stronger build?
Edited by Ausar, Mar 26 2018, 06:38 AM.
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Palaeoscincus
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Thing is, I don't really see a sloth bear sow as all that heavily built, at least not like what the stereotypical bear is like. Sloth bears are less heavily built than other ursids and this is also a female which is significantly smaller than the males. The shaggy fur also gives it a bigger appearance.
I'd also say puncturing claws and a fairly large skull filled with sharp teeth would be at least as efficient at killing a similar sized animal, robust or not, than the elongated and relatively weak skull that the sloth bear possesses.
The fact that Deinonychus is also dromaeosaurine and as such probably more heavily built than say velociraptor and I don't think it would get overpowered all that easily by something like an 80kg female bear.
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Lightning
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Deinonycus also had a powerful bite force.

https://www.tandfonline.com/doi/abs/10.1080/02724634.2010.483535

A macropredator that regularly kills large prey should have a higher chance of killing a similar sized animal than a fruit/insect eater.
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Mammuthus
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The Bear should take this.
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Black Ice
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Ausar
Mar 26 2018, 02:50 AM
Black Ice
Mar 25 2018, 11:50 PM
The bear would win simply because the raptor method of killing is inefficient against heavy framed predators like bears. I'd favor a bear the size of Utahraptor over the Drom too.

Mobility would be irrelevant because this is going to be a grappling match.
So do you now favor bears over dromaeosaurs at overlapping weights?

I'm not sure if I really agree (especially if they're at parity or something, though I agree such a fight would be close), but what, in your opinion, would happen if the dromaeosaur itself had a really heavy frame (e.g. Utahraptor)? Is the dinosaur’s killing method still not going to cut it despite its stronger build?
I don't doubt the raptor has the capacity to kill the bear; I just don't see the way it'd go about doing it to be effective. Sloth bears are lanky but they are also extremely fidgety and have long coarse fur that would against longer claws be more effective at tangling them than shorter claws like a cats. I just can't imagine the raptor being able to secure a solid enough grip in the grappling match to do any real damage unless it managed to pin the bear under its weight securely in the first attempt.

In short, theoretically a Deinonychus or any Dromaeosaur should be able to seriously injure a bear at parity, but in actuality it would be extremely difficult imo due to how bears are built and their fighting style. I favor Raptors over Cats, Bears over both raptors and cats.

Looking at the fact I missed this is a Sow bear though I favor the Raptor in actuality here. It's on average a bit bigger.
Edited by Black Ice, Mar 26 2018, 07:28 AM.
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Vivyx
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Giving this one to the drom for its size advantage and superior weaponry.
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221Extra
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I agree the raptor should win. Sloth bears are tough but aside from their claws they're at the bottom of the totem pole when it comes to bears maybe aside from giant pandas imo.
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Mammuthus
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What are the size estimations (preferably weight) for the Dromaeosaur?
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Lightning
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Mammuthus
Mar 27 2018, 05:07 AM
What are the size estimations (preferably weight) for the Dromaeosaur?
It says 73kg to 100kg on the op.
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