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Post by brobear on Nov 2, 2019 4:40:56 GMT -5
My friend at Wildfact, tigerluver, is a Biologist... the real deal. He researched and drew this up based on bone-size:
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Post by brobear on Nov 2, 2019 4:44:07 GMT -5
1100 kg ( 2,425.08 pounds ) Arctodus simus vs 850 kg ( 1,873.93 pounds ) Ursus maritimus tyrannus. My favorite here is Ursus ( ? ) tyrannus. However, the giant short-faced bear has a weight advantage of anywhere from 500 to 600 pounds ( the weight of a full-grown Russian black grizzly ). Here I must swallow my pride and admit defeat. pictured is a California grizzly and Arctodus simus:
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Post by King Kodiak on Nov 2, 2019 7:57:07 GMT -5
My friend at Wildfact, tigerluver, is a Biologist... the real deal. He researched and drew this up based on bone-size: Brobear: are these supposed to be average weights or max weights? I guess max weights going by Middendorffi.
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Post by brobear on Nov 2, 2019 8:04:37 GMT -5
Well, He did go normal-max for the Kodiak bear ( not ultimate-max ). Same too for the guesstimated normal-max of the short-faced bear species. As for Ursus ( ? ) tyrannus... a single bone means one particular bear - best chances... average bear.
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Post by brobear on Nov 17, 2019 15:19:13 GMT -5
On average, adult Asiatic black bears are slightly smaller than American black bears, though large males can exceed the size of several other bear species. They measure 70–100 cm (28–40 in) at the shoulder, and 120–195 cm (47–77 in) in length. The tail is 11 cm (4.4 inches) long. Mature males typically weigh between 100–200 kg (220-440 lbs), with an average weight of about 135 kg (about 300 lbs). Females weigh about 65–90 kg (143–198 lbs), with large ones up to 140 kg (308 lbs). The skulls of Asian black bears are relatively small, but massive, particularly in the lower jaw. Adult males have skulls measuring 311.7–328 mm (12.3–13 in) long and 199.5–228 mm (7.9–9 in) wide, while females have skulls measuring 291.6–315 mm (11.5–12.4 in) long and 163–173 mm (6.4–6.8 in) wide.
The American black bear (Ursus americanus) is a medium-sized bear native to North America. It is the continent's smallest and most widely distributed bear species. Black bears are omnivores with their diets varying greatly depending on season and location. They typically live in largely forested areas, but do leave forests in search of food. Sometimes they become attracted to human communities because of the immediate availability of food. The American black bear is the world's most common bear species.
Black bear weight tends to vary according to age, sex, health, and season. Seasonal variation in weight is very pronounced: in autumn, their pre-den weight tends to be 30% higher than in spring, when black bears emerge from their dens. Black bears on the East Coast tend to be heavier on average than those on the West Coast, although black bears follow Bergmann's rule and bears from the northwest are often slightly heavier than the bears from the southeast. Adult males typically weigh between 57–250 kg (126–550 lb), while females weigh 33% less at 41–170 kg (90–370 lb).
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Post by brobear on Nov 17, 2019 15:21:16 GMT -5
American black bear. ( pictured a Louisiana black bear ).
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Post by brobear on Nov 17, 2019 15:33:47 GMT -5
Not much here:
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Post by brobear on Nov 17, 2019 15:48:52 GMT -5
www.nature.com/articles/srep46487 A natural hybrid has been reported also between the Asiatic black bear (Ursus thibetanus) and the sun bear (Ursus malayanus). Despite limited population sizes for most bears and apparently distinct habitats, morphology and ecology, molecular phylogenetic studies have been unable to unequivocally reconstruct the relationship among the six ursine bear species. Especially, the evolution of the American (Ursus americanus) and Asiatic black bear is difficult to resolve, despite being geographically separated. Evidence from the fossil record, morphology and mitochondrial phylogeny suggested a closer relationship between the Asiatic and the American black bears. In contrast, autosomal and Y-chromosomal sequences support a grouping with the American black bear being sister group to the brown/polar bear clade. Another conflict between mitogenomics, morphology and autosomal sequence data is the position of the morphologically distinct sloth bears (Ursus ursinus). Mitochondrial DNA (mtDNA) analyses and morphological studies placed sloth bears outside of all other ursine bears, while nuclear gene analyses favor a position close to sun bears.
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Post by brobear on Nov 17, 2019 15:56:30 GMT -5
American black bear.
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Post by brobear on Nov 17, 2019 15:58:56 GMT -5
Asiatic black bear.
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Post by King Kodiak on Dec 1, 2019 23:01:24 GMT -5
Considering all we have seen, its very timid nature, an american black bear would never even come near a tiger in the wild the same way that an Asiatic black bear displaced a big male tiger from its kill. That is just my opinion.
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Post by brobear on Dec 2, 2019 2:20:41 GMT -5
Considering all we have seen, its very timid nature, an american black bear would never even come near a tiger in the wild the same way that an Asiatic black bear displaced a big male tiger from its kill. That is just my opinion. An opinion I agree with.
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Post by brobear on Jan 1, 2020 7:17:48 GMT -5
SKULLS: Amur brown bear - score: 27.6 ( inches ). American black bear - score: 23 10/16. American grizzly: score : 27 13/16. Alaskan brown bear - score: 30 12/16. Polar bear - score: 29 15/16. Grizzly taken by hunter - score: 27 6/16. www.boone-crockett.org/news/featured_story.asp?ID=207 LARGEST HUNTER-TAKEN GRIZZLY ENTERS BOONE AND CROCKETT RECORDS FRIDAY, MAY 02, 2014
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Post by brobear on Jan 1, 2020 7:20:29 GMT -5
Compare:
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Post by brobear on Jan 1, 2020 8:07:09 GMT -5
Which is larger, the Ussuri brown bear or the Alaskan grizzly bear? Shannon Phelps, former Former Navy Seal Officer, Combat Veteran at Martial Arts and Fitness Instructor These questions can only be answered “on average”the Kodiak and Afognak brown bears are larger. I am of those who believe that the North American grizzly is a different and smaller sub species from the great kodiaks. The Ussuri brown bears don’t quite reach a size greater than the grizzlies-(on average). 900lb American grizzlies are considers great- a 1200 lb kodiak is average but not “great”. (Think 1600 lb As great!) I spent a lot of time on kodiak- working with the coast guard on behalf of Navy SEAL winter warfare training programs. Saw a few bears there and on Afognak island- they are a whole different level of big!!! Magnificent creatures - I pray for their success and there future!!
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Post by OldGreenGrolar on Jan 1, 2020 8:07:36 GMT -5
My guess. The American grizzly bear (top picture) and the Russian black grizzly (bottom). Am I right?
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Post by OldGreenGrolar on Jan 1, 2020 8:08:57 GMT -5
The grizzly bears might be slightly more aggressive than the Ussuri brown bears too.
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Post by brobear on Jan 1, 2020 8:14:48 GMT -5
animals.fandom.com/wiki/Ussuri_Brown_Bear The Ussuri brown bear (Ursus arctos lasiotus), also known as the black grizzly is a population of the brown bear. One of the largest brown bears, Ussuri brown bears approach the Kodiak brown bear in size. It is very similar to the Kamchatka brown bear, though it has a more elongated skull, a less elevated forehead, somewhat longer nasal bones and less separated zygomatic arches, and is somewhat darker in color, with some individuals being completely black, a fact which once led to the now refuted speculation that black individuals were hybrids of brown bears and Asian black bears. Adult males have skulls measuring 38.7 cm (15.2 in) long and 23.5 cm (9.3 in) wide. They can occasionally reach greater sizes than their Kamchatka counterparts: the largest skull measured by Sergej Ognew(1931) was only slightly smaller than that of the largest Kodiak brown bear (the largest subspecies of brown bears) on record at the time. In middle Sakhalin in spring, brown bears feed on the previous year's red bilberry, ants and flotsam, and at the end of the season, they concentrate on the shoots and rhizomes of tall grasses. On the southern part of the island, they feed primarily on flotsam, as well as insects and maple twigs. In springtime in Sikhote Alin, they feed on acorns, Manchurian walnuts and Korean nut pine seeds. In times of scarcity, in addition to bilberries and nuts, they capture larvae, wood-boring ants and lily roots. In early summer, they will strip bark from white-barked fir trees and feed on their cambium and sap. They will also eat berries from honeysuckle, yew, Amur grapevine and buckthorn. In southern Sakhalin, their summer diet consists of currants and chokeberries are eaten. In the August period in the middle part of the island, fish comprise 28% of their diet. In Hokkaido, the brown bear has a diet including small and large mammals, fish, birds and insects such as ants. Recent increases in size and weight, reaching 400 kg (880 lb), or possibly up to 450 kg (990 lb) to 550 kg (1,210 lb), are largely caused by feeding on crops
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Post by brobear on Jan 1, 2020 8:42:52 GMT -5
*The average Yellowstone grizzly averages roughly 500 pounds - we are of course referring to mature males. Montana grizzlies are slightly bigger. Ussuri brown bears - black grizzly - averages roughly 600 pounds. *Note: these weights are never 100% accurate and taken from random individual bears from certain populations. Therefore, the average inland grizzly at 500 pounds could vary either way by as much as 20 pounds easily. Also, the average Ussuri brown bear at 600 pounds could also vary easily by as much as 20 pounds either way. IMHO - the Russian grizzly is normally larger than the American grizzly, with the exception of the coastal bears.
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Post by brobear on Jan 1, 2020 8:46:03 GMT -5
My guess. The American grizzly bear (top picture) and the Russian black grizzly (bottom). Am I right? Quite right. You said: The grizzly bears might be slightly more aggressive than the Ussuri brown bears too. No, I believe that the Russian bears are probably a little more aggressive. Perhaps from the days when tigers were more common.
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