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Post by Deleted on Jan 20, 2019 7:27:24 GMT -5
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Post by brobear on Jan 20, 2019 9:47:57 GMT -5
This is the cause of a great deal of conflict between bear enthusiasts. I have no ridiculous doubts in my mind that a 1200 pound polar bear could make short-work of a 300 pound grizzly. I use these numbers as they are typical weights of these two bears. But, it is rather like the wolverine scenario; that little guy can often displace much bigger and stronger predators from a carcass - sheer aggression works as a successful bluff.
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Post by Deleted on Jan 20, 2019 21:26:14 GMT -5
According to Scott Schalibier as said by a poster from ava forum, large male polar bears are known to ignore the bluff charges of the grizzly making the letter unwilling do intimidate any further considering a large 1200 pound polar bear is capable of ripping a 300 to 400 pound grizzly apart if it gets annoyed.
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Post by brobear on Jan 21, 2019 3:51:54 GMT -5
According to Scott Schalibier as said by a poster from ava forum, large male polar bears are known to ignore the bluff charges of the grizzly making the letter unwilling do intimidate any further considering a large 1200 pound polar bear is capable of ripping a 300 to 400 pound grizzly apart if it gets annoyed. This is believable. I would like to discover the source of the poster's findings.
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Post by King Kodiak on Jan 21, 2019 5:17:27 GMT -5
According to Scott Schalibier as said by a poster from ava forum, large male polar bears are known to ignore the bluff charges of the grizzly making the letter unwilling do intimidate any further considering a large 1200 pound polar bear is capable of ripping a 300 to 400 pound grizzly apart if it gets annoyed. Well in theory, any polar bear that is triple the weight of a grizzly could beat it in a fight sure, the thing is we havent seen it yet. Up to now its always the grizzly being more aggressive and driving the polar off.
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Post by King Kodiak on Jan 24, 2019 16:46:55 GMT -5
GROLAR BEAR HERE.
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Post by brobear on Jan 24, 2019 17:24:54 GMT -5
I wonder about the size of grolar bears. Grolar bear - from male grizzly and female polar bear. Prizzly bear - from male polar bear and female grizzly.
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Post by tom on Jan 24, 2019 17:38:02 GMT -5
According to Wikipedia the hybrid's have a smaller body than a Polar Bear but larger than a Grizzly.
From Wikipedia:
Characteristics
Two grizzly–polar hybrid cubs (one female and one male) were born at Osnabrück Zoo in Osnabrück, Germany, in 2004, and their physical traits are generally an intermediate between the polar bear and the grizzly bear.[25] For example, their bodies are smaller than polar bears, but larger than grizzlies, while their heads fall between the broader grizzly head and the leaner polar bear head.[25] They have long necks like polar bears, but small shoulder humps like grizzlies.[25] The soles of their feet are partially covered in hair; polar bears have hair-covered soles, which act as insulation, and grizzlies have hairless soles.[25]
Similarly, the hair of the hybrids exhibits a pattern of hollowness, which blends the traits of both polar bears and grizzlies. In cross section, the hair of polar bears is hollow, while the hair of grizzlies is either solid or has small hollow regions.[25] This varies according to which part of the grizzly the hair is located.[25] In the hybrid male, the paw hair was solid, but the dark back hair was somewhat hollow, albeit with "smaller empty regions than found in polar bear hair".[25] The hair of the female hybrid, "contains a range of hollow regions".[25]
The hybrids demonstrated behavior more similar to polar bears than grizzlies. They stomped toys similar to how polar bears break ice, and hurled bags to the side "as polar bears may hurl prey".[25] Grizzlies given the same bags do not demonstrate this hurling behavior.[25] The hybrids were also observed lying down similar to polar bears: on their bellies with rear legs splayed.[25]
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Post by King Kodiak on Jan 24, 2019 17:49:36 GMT -5
I wonder about the size of grolar bears. Grolar bear - from male grizzly and female polar bear. Prizzly bear - from male polar bear and female grizzly. But do we have any actual case of a Prizzly bear? up to now it has been all Grolars correct?
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Post by King Kodiak on Jan 24, 2019 17:55:00 GMT -5
Rare 'Pizzly' Or 'Grolar' Bear Shot And Killed By Hunter In Canada "It is not a good thing for the future of polar bears that we see this hybridization occurring." By Ed Mazza 05/25/2016 05:37 AM ET It's called a "pizzly" or "grolar" bear, and is so rare only a handful of sightings have been confirmed in the wild -- and no one can say for sure how many even exist. Until about 10 years ago, few believed this hybrid grizzly-polar bear even existed in the wild at all. But earlier this month, one of these rare bears was shot and killed in Canada by 25-year-old hunter Didji Ishalook. "It looks like a polar bear but it’s got brown paws and big claws like a grizzly," Ishalook told the Guardian. "And the shape of a grizzly head." DNA samples from the bear have been sent out for testing, but experts think they already know what the results will say. "I think it’s 99 per cent sure that it’s going to turn out to be a hybrid,” Ian Stirling, an emeritus research scientist with Environment Canada, told The Toronto Star. The paper reports that the bear was legally killed as part of a program that allows Inuit to practice subsistence hunting. Stirling explained that it can take several days to induce ovulation in a female bear. "The fact that a grizzly and polar bear are mating tells you that they’re hanging out," he told the Star. "This isn’t just a casual one-night stand kind of thing." The name of the hybrid bear depends on the father: If he's a grizzly, the baby is a grolar. If he's a polar bear, it's a pizzly, according to Nunatsiaq News. As sightings become increasingly common, experts are debating the reasons for the seemingly growing number of hybrid bears. "With climate change, grizzly bears are moving further north, so there is more overlap between grizzly bears and polar bears in terms of their range," bear expert Dave Garshelis of the Minnesota Department of Natural Resources told the CBC. "There are even American black bears that are moving further north. And a few black bears have been spotted outside of Arviat." But not everyone is sold on that theory. "We can’t say specifically, 'this is because of climate change,'" Nunavut carnivore biologist Malik Awan told Nunatsiaq News. "There’s many possible reasons. For example, there’s a lot going on in grizzly habitat in the South like habitat change, loss and fragmentation." Whatever the reason, there seem to be more of them these days -- and that's bad news for the vulnerable polar bear: A 2010 report in Nature find that hybridization "can be the final straw in loss of species,” according to National Geographic. "It is not a good thing for the future of polar bears that we see this hybridization occurring," bear expert Chris Servheen told Vice News. "And it's not going to result in some kind of new bear that is successfully living in the Arctic." m.huffpost.com/us/entry/us_57453eeae4b055bb1170b094/amp
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Post by tom on Jan 24, 2019 18:26:01 GMT -5
I wonder about the size of grolar bears. Grolar bear - from male grizzly and female polar bear. Prizzly bear - from male polar bear and female grizzly. But do we have any actual case of a Prizzly bear? up to now it has been all Grolars correct?
According to this article which states: All hybrids that have been analyzed had grizzly fathers, because grizzly males roam to establish territory and come in contact with receptive female polar bears. Female grizzlies tend not to stray far from their home ranges, and male polar bears don't usually creep into grizzly habitats. www.adn.com/wildlife/2016/5/23/love-in-the-time-of-climate-change-grizzlies-and-polar-bears-are-now-mating/
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Post by King Kodiak on Jan 24, 2019 18:35:27 GMT -5
Nice article Tom. Looks like up to now all are Grolars.
Also very interesting:
"I hate to say it, but from a genetic perspective, it's quite likely grizzly bears will eat polar bears up, genetically," he told me. And he says the changes are already at play.
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Post by tom on Jan 24, 2019 18:44:59 GMT -5
This I also found interesting from the artcle:
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Post by brobear on Jan 24, 2019 18:49:52 GMT -5
It just might be that prizzly bears have been bred in captivity. I wonder how they might be different. When a male tiger is bred with a lioness, the tigon is a really ridiculous-looking cat with a lion's mane and tiger stripes. They are rather small. But when a lion is bred with a tigress, you get a gigantic handsome liger.
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Post by King Kodiak on Jan 24, 2019 19:03:10 GMT -5
With this climate change problem, in the future, it looks like Grolar bears will be replacing polar bears. Lets hope not.
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Post by brobear on Jan 24, 2019 20:44:08 GMT -5
With this climate change problem, in the future, it looks like Grolar bears will be replacing polar bears. Lets hope not. I believe that some populations of polar bears will migrate south and blend-in with the local grizzly population. ( as with the ABC bears ). But not all of them.
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Post by King Kodiak on Jan 25, 2019 16:53:05 GMT -5
It seems to me that female brown bears would be harder to get than female polar bears. The female brown bears are alot more used to defending her cubs from other predators.
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Post by brobear on Jan 25, 2019 18:57:06 GMT -5
It seems to me that female brown bears would be harder to get than female polar bears. The female brown bears are alot more used to defending her cubs from other predators. It would depend on her views ( opinions ) of the polar bear. Will she see him as a threat or as a big handsome bear?
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Post by King Kodiak on Jan 25, 2019 19:10:36 GMT -5
It seems to me that female brown bears would be harder to get than female polar bears. The female brown bears are alot more used to defending her cubs from other predators. It would depend on her views ( opinions ) of the polar bear. Will she see him as a threat or as a big handsome bear? Ha ha ha, i am thinking more like a threat, most times at least.
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Post by brobear on Feb 14, 2019 12:40:45 GMT -5
Love happens. Bears are not racial. Happy Valentines Day.
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