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| Sloth Bear (Sow) v Deinonychus antirrhopus | |
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| Tweet Topic Started: Mar 25 2018, 08:46 PM (664 Views) | |
| Taipan | Mar 25 2018, 08:46 PM Post #1 |
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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) ![]() 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. ![]()
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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| Caius | Mar 27 2018, 06:14 PM Post #16 |
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Unicellular Organism
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I'd give it to the Deinonychus. Considering the bear is a sow it might even appear visually smaller than the Deinonychus when on all fours. The bears fur is long, at it's thickest around the neck and shoulders but the belly and and underlegs are no way near as densely covered, leaving it somewhat bare, ideal for the feet of Deinonychus to do some damage. I don't think an insectivore this small with blunt teeth and blunt claws would be able to successfully subdue the Dromaeosaur. |
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