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Post by Deleted on Apr 5, 2019 6:51:35 GMT -5
A 25 year old grizzly.
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Post by BruteStrength on Apr 8, 2019 2:37:26 GMT -5
I remember watching a video where it said that female bears prefer young males.
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Post by Deleted on Apr 8, 2019 2:41:15 GMT -5
I remember watching a video where it said that female bears prefer young males. Ursus Artos posted an account that describes everthing in detail, it is the younger females that prefer younger males - nice bears don't finish last unlike nice guys .
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Post by BruteStrength on Apr 8, 2019 2:41:57 GMT -5
Correct. I also read that old male bears are the strongest too. This fact holds true up to a point. Even the mighty grizzly will reach a point where he begins to feel the ravages of time. His joints become stiffer and he begins to lose muscle mass. Loss of teeth make feeding much more difficult. Stronger bears take the choice feeding location which he once ruled. This old bear is likely the equivalent of a man between 90 and 100 years old. Most common cause of natural death for very old bears is either starvation or freezing from lack of accumulated fat during the Winter months. I remember reading ( possibly from the shaggygod forum ) that such a bear can be recognized by his concave shoulder hump - V shape rather than upside down U. So basically when a bear of this age passes he goes by freezing to death or starving. I never knew this. This brings a tear to me eye.
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Post by Deleted on Apr 8, 2019 2:44:32 GMT -5
Thats a sad ending for the old bear .
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Post by BruteStrength on Apr 8, 2019 2:55:38 GMT -5
Even the bear goes out in a hard strong way.
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Post by Deleted on Apr 8, 2019 3:02:44 GMT -5
Even the bear goes out in a hard strong way. A tough warrior to the very end. Deserves a salute of respect.
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Post by BruteStrength on Apr 8, 2019 3:04:37 GMT -5
Exactly. This is probably why bears were worshiped and respected in the past.
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Post by Deleted on May 6, 2019 0:45:52 GMT -5
Correct me if I am wrong but it seems that grizzly bears even beat male tigers and lions in terms of lifespan.
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Post by King Kodiak on May 6, 2019 4:54:55 GMT -5
Correct me if I am wrong but it seems that grizzly bears even beat male tigers and lions in terms of lifespan. Yeah for sure. Brown bears in the wild live anywhere from 20 to 30 years old, in captivity alot more. While tigers in the wild normally live from 10 to 15 years, in captivity up to 25 years. Lions in the wild live up to about 14 years, in captivity up to about 20 years old.
domainofthebears.proboards.com/thread/21/longevity-maturity
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Post by brobear on Nov 14, 2019 12:45:39 GMT -5
The Grizzly Almanac ~ Although there is one record of a captive grizzly living to the age of 47 in a zoo, most wild bears are lucky to reach 25. The oldest wild grizzly on record in Alaska was 35; the oldest one in British Columbia lived to the age 34. www.startribune.com/local/221334841.htmlMINNEAPOLIS — The world's oldest known wild black bear, a shy but prolific female simply named Bear No. 56, has died of old age at 39.5, Minnesota wildlife researchers said Tuesday. Karen Noyce was fresh out of graduate school when she joined the Department of Natural Resources' bear project in 1981 and helped radio-collar the then 7-year-old animal. She found the bear's remains in the Chippewa National Forest in northern Minnesota last week and said it appeared to have died of natural causes. Noyce said she was fond of the bear, but mostly glad for the chance study her for so long. "I spent a couple of hours out there at the site ... and said a little thank-you for the opportunity to watch this bear through my whole career," she said in an interview.
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Post by brobear on Nov 14, 2019 12:46:12 GMT -5
Director’s Message Scott Shoemaker, Sunset Zoo Director shoemaker@ci.manhattan.ks.us Since last writing to you, we have lost our long-time resident grizzly bear, Brownie. Many of you have long been Friends of Sunset Zoo with fond memories of Brownie and I hope you are comforted that Brownie passed quietly and comfortably surrounded by the Zoo staff that cared so much for him. Brownie had called Sunset Zoo home since 1968 after he had been “retired” from an Oklahoma-based circus. Grizzly bears live an average of 20-25 years and Brownie, at 56 years of age, was quite possibly the oldest bear in captivity. Consequently, he accumulated a series of ailments common to elderly animals, such as arthritis, chronic dental and liver issues, and so on. He was on many medications to help deal with his medical conditions. While Brownie continued to live a long and memorable life, his condition slowly and inevitably deteriorated. On Friday, May 22, the difficult decision was made to allow Brownie the dignity due such a magnificent animal. The decision to euthanize Brownie was one of the hardest decisions I have ever had to make, but I am convinced it was the only truly humane one. These choices are not taken lightly and follow longterm monitoring by the animal care staff and ongoing discussions between our veterinarians and Zoo administrative staff. Geriatric care is becoming increasingly common in zoos as veterinarians and zoo staff become more knowledgeable about maintaining animals in captivity. These types of decisions will become more and more common due to the success of zoo people everywhere, but they will never become any easier. Brownie was more than a resident at Sunset Zoo, he was an icon. His memory shall live on in our staff and visitors that had the privilege to know Brownie over the many years he lived with us. Life truly is a circle, and so as not to leave you on a sad note, we have two new sloth bear cubs that are now on exhibit and two snow leopard cubs that are still getting to know their mom and their world behind the scenes. Come on out and enjoy their antics. I hope to see you at Sunset Zoo this summer, Scott Shoemaker, Zoo Director.
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Post by brobear on Nov 14, 2019 12:46:50 GMT -5
One of Fresno Chaffee Zoo's oldest residents, Betsy the grizzly bear, was euthanized this morning at the advanced age of 38.
Betsy came to Fresno from the Los Angeles Zoo with a litter mate named Ross in 1976 — a pair of cubs with names celebrating Betsy Ross, purported maker of the first American flag, on the bicentennial.
Betsy recently began to show declining health due to age-related issues. She was the oldest living female brown bear in an accredited Association of Zoos and Aquariums facility, out of hundreds of institutions.
"Betsy was a favorite and much loved part of Fressno Chaffee Zoo, both by our community and staff. We are devastated at her passing and will miss her greatly," said Assistant Curator Lyn Myers, in a statement.
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Post by brobear on May 5, 2020 5:23:38 GMT -5
This topic comes up often and often turns into a heated debate. Let's get some answers here. This is what I have: shaggygod.proboards.com/thread/671/grizzly-bear-anatomy?page=1 Males attained full size in 7 of 11 body measurements by age 6 and in all 11 by age 9. Thus, for male bears, skeletal growth appeared to be completed rapidly while weight tended to increase throughout the normal life span. This contribution presents results of a study of the timing of appendicular epiphyseal fusion in brown bears (Ursus arctos) based on the visual examination of 86 modern skeletons of grizzlies (U. a. horribilis) of known age and sex from the greater Yellowstone area, in the States of Wyoming and Montana (US). The timing of fusion in brown bears was compared with the (scant) information available for the black bear (Ursus americanus); both similarities and differences were found. It is still inconclusive whether the discrepancies stem from the methods of study (visual examination vs. X-rays) or whether they reflect real difference in fusion ages. It is suggested that data derived from U. arctos can be used profitably to investigate mortality patterns of extinct bears such as the cave bear Ursus spelaeus. Weinstock, J. (2009), Epiphyseal fusion in brown bears: a population study of grizzlies (Ursus arctos horribilis) from Montana and Wyoming. International Journal of Osteoarchaeology, 19: 416–423.
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Post by OldGreenGrolar on May 5, 2020 5:27:51 GMT -5
Great chart. Bears indeed take longer to reach sexual maturity than big cats.
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Post by brobear on May 5, 2020 5:28:56 GMT -5
I can also say that in Doug Peacock's books; particularly "Grizzly Years" he considers the male grizzly to be a full-grown bear at 10 years old. He refers to an 8-year-old bear as a sub-adult.
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Post by brobear on May 5, 2020 5:33:50 GMT -5
Great chart. Bears indeed take longer to reach sexual maturity than big cats. Bears and big cats reach sexual maturity at pretty-much the same ages I think. But I'm not talking about sexual maturity. That is why all of our weight averages for mature male bears are all messed-up. A boy can be sexually mature at an early age ( sometimes around 11 years old ) but that does not make him a man. Big cats are full-grown much quicker than are bears.
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Post by King Kodiak on May 5, 2020 6:31:52 GMT -5
From all i have read, this is basically the way it is for brown bears:
From 0 to 2.5 years-cub From 2.5 to 5 years-subadult From 5 to 9 years-adult but not fully grown From 9 years and up-adult and fully grown.
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Post by King Kodiak on May 5, 2020 6:47:00 GMT -5
This report here explains it perfectly:
BY THE TIME THEY REACH OR EXCEED EIGHT TO NINE YEARS OF AGE, MALE KODIAK BEARS TEND TO BE MUCH LARGER THAN NEWLY MATURE 6 YEAR OLD MALES, POTENTIALLY TRIPLING THEIR AVERAGE WEIGHT WITHING THREE YEARS TIME AND CAN EXPECT TO AVERAGE BETWEEN 360 AND 545 KG (794 to 1202 LBS)
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Post by Deleted on May 5, 2020 18:56:53 GMT -5
How does is this grounds for a heated debate again?
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