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Post by oldindigosilverback on Jan 22, 2023 6:00:25 GMT -5
The Polar Bear Brutally Kills The Giant Walrus To Provide More Energy For Its Upcoming Hibernation. The polar bear is a large animal. They are the largest of all the bears in existence. With living in a harsh environment, the animals living in this area will generally have a thick layer of fat or equally thick fur to protect the body in the best way. Polar bears are equipped with both. With the thickness of three layers of fur along with a thick layer of fat, the polar bear’s body is very well adapted to the cold environment. But that’s not enough for the bears to survive, so of course they also have a hibernation like other bears. Bears, even if they live in a place that is covered with snow year-round, will have seasonal differences in the temperature at which the sun shines. So before hibernation, like other bears, polar bears have to eat more food and from there store enough fat until next spring. The walrus became the target of this polar bear’s attack. To be able to provide enough energy for polar bears, adult walruses are the ideal choice. And of course, ideally, it takes a lot of time to catch and kill the opponent. But in the end the polar bear successfully recharged the body. The video has attracted more than 61M views on Youtube: animallifenew.com/the-polar-bear-brutally-kills-the-giant-walrus-to-provide-more-energy-for-its-upcoming-hibernation/?fbclid=IwAR3GG4x2sVy9w2mPvg8rt3XUuWyFlJNe3OeXCo3PT6vLJCMxPM6MUisaLecCredited to Brobear.
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Post by oldindigosilverback on Jan 22, 2023 6:18:36 GMT -5
Forgot to mention this. Keep in mind that only pregnant female polar bears hibernate.
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Post by oldindigosilverback on Jan 24, 2023 5:42:46 GMT -5
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Post by oldindigosilverback on Jan 24, 2023 19:08:26 GMT -5
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Post by oldindigosilverback on Feb 3, 2023 9:07:58 GMT -5
Birds on the Polar Bears’ Menu.
Polar bears use Arctic sea ice to hunt seals, but a warming Arctic means the bears have to return to land earlier in the year. Their arrival coincides with droves of birds sitting on eggs. A single clutch of eggs isn’t enough to satisfy a bear, so they go from nest to nest, sometimes eating their way through a colony. Scientists designed a bear-proof nest case to protect Black Guillemot eggs. www.birdnote.org/listen/shows/birds-polar-bears-menuThe full transcript is on the same link above: Birds on the Polar Bears’ Menu
Written by Richa Malhotra
This is BirdNote. Polar bears, mighty predators of the Arctic, hunt seals and their pups on sea ice. But a warming Arctic means longer seasons without ice and the early return of polar bears to land. Their untimely arrival coincides with droves of birds sitting on a bounty of eggs. [Cacophony of Thick-billed Murres, www.xeno-canto.org/141228, 0.05-.11] Depending on where a polar bear is in the Arctic, there may be Common Eiders, Thick-billed Murres (pron. murz, like purrs), Little Auks, Glaucous Gulls, Lesser Snow Geese and Barnacle Geese on the menu. While bears feed primarily on eggs and chicks, they will take the occasional adult if they can grab one. [Alarm call of a female eider with chicks, macaulaylibrary.org/asset/279182411, 0.02-.11] Unfortunately, a single clutch of eggs is no substitute for a seal rich in fat. So, hungry polar bears go from one nest to another, and then another, until they’ve eaten their way through pretty much all of the nests in a colony. The fate of these birds is unknown, but at least one bird is getting some help. On Cooper Island, off the coast of Alaska, where nesting Black Guillemots (pron. GILL-uh-mahtz) are vulnerable to predation, scientists have placed polar bear-proof nest cases to give the birds a fighting chance. [Black Guillemot chick squeaking, macaulaylibrary.org/asset/174688311, 0.01-.04] For BirdNote, I’m Michael Stein. ### Senior Producer: John Kessler Production Manager: Allison Wilson Producer: Mark Bramhill Associate Producer: Ellen Blackstone Digital Producer: Conor Gearin Bird sounds provided by The Macaulay Library of Natural Sounds at the Cornell Lab of Ornithology, Ithaca, New York. Thick-billed Murre Xeno Canto 141228 recorded by A. Spencer, Common Eider ML 279182411 recorded by A. Spencer, and Black Guillemot ML 174688311 recorded by P. Davis. BirdNote’s theme was composed and played by Nancy Rumbel and John Kessler. © 2021 BirdNote July 2021 Narrator: Michael Stein ID# polarbear-01-2021-07-22 polarbear-01 References: doi.org/10.1016/j.anbehav.2020.11.009link.springer.com/article/10.1007/s00300-010-0791-2
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Post by oldindigosilverback on Feb 3, 2023 9:11:55 GMT -5
Polar bears shift from seals to bird eggs as Arctic ice melts.Poaching eggs Jouke Prop Polar bears are ditching seafood in favour of scrambled eggs, as the heat rises in the Arctic melting the sea ice. A changing coastline has made it harder for the predators to catch the seals they favour and is pushing them towards poaching goose eggs. This is according to a team led by Charmain Hamilton of the Norwegian Polar Institute that monitored the movements of local polar bears and seals before and after a sudden decline in sea ice in 2006, which altered coastal areas in the Norwegian archipelago of Svalbard. The researchers attached tracking devices to 60 ringed seals and 67 polar bears overall, which allowed them to compare their movements before and after the ice collapse. Before the melt, when they were hunting on stable sea ice, the polar bears had a big advantage over their favoured prey. “Both sexes of all age classes successfully hunt seals by stalking or ‘still hunting’,” says Hamilton. However, on a melting coastline punctuated by broken-up icebergs, the odds become stacked in the seal’s favour. In deep water The polar bears must now swim undetected towards the seals before launching themselves out of the water to grab their prey on the floating chunks of ice. Not all bears have mastered this explosive technique and there is a high failure rate even among those that have. “It seems that currently, it is mainly large, male bears using this aquatic hunting method on Svalbard,” says Hamilton. “It is likely [to be] more energetically demanding than the traditional hunting methods.” Rare success at seal hunting Kit Kovacs/Christian Lydersen, Norwegian Polar Institute In response, the bears are retreating from the coast. The tracking devices show them wandering greater distances in search of alternative land-based food. The bears also spend a lot more time near bird nesting grounds, which suggests eggs have become a significant food source. But they would need an immense omelette to replace a seal breakfast and this type of mass egg hunting can devastate nesting bird populations. Ecologist Jouke Prop at the University of Groningen, Netherlands, is also studying geese in the Arctic. He has filmed bears devouring goose eggs at nesting sites. Smash and grab
“It takes on average 30 seconds to locate a nest and 60 seconds to eat the eggs,” he says. Previous research found that affected bird populations can slump by up to 90 per cent. “It is extremely intriguing how the habit of bird egg eating is developing within the polar bear population,” says Prop. “Which bears are eating eggs? Did they learn from their mothers?” “I have seen the diarrhoea faeces of bears eating eggs,” says Maarten Loonen at the University of Groningen. “I think eggs are not their best favourite food. Too much protein. Nevertheless, they have to eat something and they probably can survive on it.” The bears seem to be getting enough nutrition to survive, but Hamilton wonders what the long-term effects of this change in diet will be. “Seal fat is an extraordinarily rich source of lipids that will be very hard to replace,” she says. As the bears move on to eating bird eggs for sustenance, what will happen to the geese population in the future? “If numbers decline – which is to be expected – this will have an impact on the whole terrestrial ecosystem,” says Prop. “For example, Arctic foxes depend on young geese as food; reindeer food intake is facilitated by geese grazing the tundra.” Despite the uncertainty, one thing is clear: the cubs and eggs of the new generation will have to adapt quickly to survive the next phase of Arctic environmental change. Journal reference: Journal of Animal Ecology, DOI: 10.1111/1365-2656.12685 www.newscientist.com/article/2130821-polar-bears-shift-from-seals-to-bird-eggs-as-arctic-ice-melts/
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Post by oldindigosilverback on Feb 3, 2023 9:12:46 GMT -5
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Post by oldindigosilverback on Feb 6, 2023 16:06:34 GMT -5
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Post by Gorilla king on Feb 24, 2023 21:15:58 GMT -5
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Post by oldindigosilverback on Feb 28, 2023 3:36:45 GMT -5
/\ Polar bears are relentless killers of beluga whales whenever the opportunity arrives.
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Post by brobear on Mar 1, 2023 5:48:31 GMT -5
CETACEA (WHALES)- shaggygod.proboards.com/board/22/cetacea-whales Nanook fight anything when hungry," declared Pooshuk, and grinned as another example came to mind. Once while hunting bowhead whales in the crumbling June ice with brass harpoon gun, he and his oomiak crew members had seen a polar bear jump on the back of a surfacing whale, go down with it, and come up again still trying to bite a mouthful of blubber off the forty-ton behemoth.
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Post by Gorilla king on Apr 13, 2023 7:54:04 GMT -5
FEMALE POLAR BEAR KILLS ADULT MALE REINDEER IN SVALBARD
In what researchers described as an extremely rare event, a polar bear.has killed a reindeer (an adult male - "bull") on the islands of Svalbard late last year (2008). According to a report from the Norwegian Polar Institute. The Polar Bear, a female, is one with a satellite transmitter attached, allowing researchers to monitor the bears movements throughout the year – and locate the exact point of the incident. According to researcher Jon Aars, if there are many years of poor ice conditions, polar bears may continue to move inland for prey and in doing so offer clues as to how they might adapt to a warming Arctic.
www.npolar.no/nyheter/2009/2009-01-06-reinsdyr-tatt-av-isbjornbinne
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Post by oldindigosilverback on Apr 14, 2023 5:59:39 GMT -5
So 75% of a polar bears meal consist of seals, an arctic fox has the warmest coat out of all.
The polar bear prefers blubber while the fox prefers meat. This does not mean a polar bear cannot slice meet as it can. I believe polar bears prefer blubber due to their high metabolism.
The arctic fox probably has the thickest fur coat pound to pound.
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Post by oldindigosilverback on Apr 16, 2023 4:38:40 GMT -5
Incredible moment polar bears fight it out over prey but then decide to share bloody carcass instead. THIS is the extraordinary moment three hungry polar bears ferociously fought each other for food – before eventually deciding to share a meal together. The huge bears were spotted battling for survival in Svalbard, Norway, before appearing to call a truce. The huge bears fought each other over the carcass, before deciding to peacefully share A Swedish photographer captured beautiful pictures of the blood-splattered animals medianews48.com/incredible-moment-polar-bears-fight-it-out-over-prey-but-then-decide-to-share-bloody-carcass-instead/
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Post by Gorilla king on Feb 28, 2024 9:46:40 GMT -5
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