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Post by brobear on Jan 1, 2020 10:17:10 GMT -5
BigBonns once said that the biggest grizzlies are the old monarchs that are not only big and powerful, but also crafty enough to elude hunters, as they are exactly what human hunters are seeking ( for bragging rights ). Therefore, when biologists are out shooting bears with tranquilizers, those old crafty bears go into hiding. So here again perhaps the true average weight for mature male grizzlies might be a bit higher.
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Jan 1, 2020 10:22:25 GMT -5
Post by King Kodiak on Jan 1, 2020 10:22:25 GMT -5
BigBonns once said that the biggest grizzlies are the old monarchs that are not only big and powerful, but also crafty enough to elude hunters, as they are exactly what human hunters are seeking ( for bragging rights ). Therefore, when biologists are out shooting bears with tranquilizers, those old crafty bears go into hiding. So here again perhaps the true average weight for mature male grizzlies might be a bit higher.
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Mar 3, 2020 19:44:19 GMT -5
Post by brobear on Mar 3, 2020 19:44:19 GMT -5
wildpro.twycrosszoo.org/S/0MCarnivor/ursidae/ursus/Ursus_arctos/01Ursus_arctosAMWtHt.htm APPEARANCE / MORPHOLOGY: MEASUREMENT AND WEIGHT with literature reports for the Brown bear - Ursus arctos: Use sub-contents list below, or simply scroll down the page to view findings. (Editorial Overview Text Replicated on Overall Species page - Ursus arctos - Brown bear) LENGTH Adult: The head and body length varies from 1.0 - 3.0 m (3ft 3 inches to 10 ft). This may be due to both genetic factors and nutrition. Newborns: Newborn cubs are about 203 - 280 mm (8 - 11 inches) long. HEIGHT Adults and sub-adults: Shoulder height is 0.9 - 1.5 m (3 - 4.9 ft). Juveniles: -- WEIGHT Adult: The size and weight of these bears varies considerably between populations; in any given population, males average heavier than females. The heaviest brown bears have been recorded from populations with access to salmon in coastal Alaska. While individuals have been weighed at more that 1,000 lb (>454 kg), most are much lighter than this. Average weights are probably closer to 200 kg (450 lb) for males and 135 kg (300 lb) for females; however in some areas they are much smaller: in some populations in southern Europe average weight is as low as 70 kg, and in Jasper National Park, Alberta, Canada, average weights were 92 kg for males, 55 kg for females. This wide variation may be due to both genetic factors and nutrition. Weight also shows large seasonal fluctuations; brown bears gain weight rapidly during late summer and autumn (fall), reach their maximum mass just before denning, then lose weight (up to 40% of total mass for females) over the winter hibernation. Newborns: Cubs weigh less than 1% of maternal weight, about 285 - 600 g (9 oz to 1 lb 5 oz). GROWTH RATE Growth rate is highly variable depending on food intake. Hand-reared cubs have variously reached between about 1.7 and 2.5 kg by one month, 4.3 - 6.4 kg by two months, 7.4 - 8.5 kg by three months, 20 kg by four months and as much as 50 kg at seven months. Wild cubs may reach 15 kg at three months. In the wild, young-of-the-year may range from 2.0 - 27 kg and yearlings from 9 - 37 kg. Growth may continue after puberty (four to six years), even to 10-11 years of age in southern Alaska. (References are available in detailed literature reports below) SUMMARY: The head and body length varies from 1.0 - 3.0 m (3ft 3 inches to 10 ft). This may be due to both genetic factors and nutrition. Head and body: 1.7 - 2.8 m. (B285.w4) 1.5 - 2.8 m. (B285.w4) 1.0 - 2.8 m. (D243) 2.0 - 3.0 m (7 - 10 ft). (B144) In the Alps these bears are as small as 1.7 m (5.5 ft) in length. (B144) Five ft 11 ins to 7 ft (1.8 - 2.13 m). (B180.w3) Males average 1.7 m (5 ft 8 inches); very large males may reach 2.1 - 2.5 m ( 7 - 8 feet). (B392.8.w8) Males in Europe up to 2.1 m. (B422.w14) Females average 1.4 m (4 ft 8 inches). (B392.8.w8) Siberia: males mean 1.86m, females mean 1.6m. (D243) Males head and body length, measured over the curves, from 1.5 m (5 ft) to 2.2 m (7 ft). (B425) Females head and body length, measured over the curves, from 1.37 m (4 ft 6 ins.) to 1.83 m (6 ft). (B425) Size variations may be partly due to genetics but nutrition is involved since bears from small populations raised in zoos may get quite large. (B406.36.w36) Neonate / Young SUMMARY: Newborn cubs are about 203 - 280 mm (8 - 11 inches) long. North American brown bear cubs measure about 8 - 9 inches (203 - 230 mm). (B288.w11) Moscow zoo data: 230 - 280 mm (9 - 11 inches). (D243) A female Kodiak bear cub, zoo born, was 27 cm (about 10.5 inches) long. (B288.w11) Two newborn cubs were 8.25 and 8.5 inches (20.96 and 21.59 cm) long, from the crown of the head to the base of the tail. (J23.11.w3) SUMMARY: Shoulder height is 0.9 - 1.5 m (3 - 4.9 ft). Shoulder height: 0.9 - 1.5 m (3 - 4.9 ft). (B147, B285.w4) Up to 1.5 m. (D243) About 1.3 m (4ft 3 ins). (B180.w3) 0.9 - 1.5 m (3 - 5 ft). (B144) [Height = highest point measured]
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Mar 3, 2020 19:45:12 GMT -5
Post by brobear on Mar 3, 2020 19:45:12 GMT -5
SUMMARY: The size and weight of these bears varies considerably between populations; in any given population, males average heavier than females. The heaviest brown bears have been recorded from populations with access to salmon in coastal Alaska. While individuals have been weighed at more that 1,000 lb (>454 kg), most are much lighter than this. Average weights are probably closer to 200 kg (450 lb) for males and 135 kg (300 lb) for females; however in some areas they are much smaller: in some populations in southern Europe average weight is as low as 70 kg, and in Jasper National Park, Alberta, Canada, average weights were 92 kg for males, 55 kg for females. This wide variation may be due to both genetic factors and nutrition. Weight also shows large seasonal fluctuations; brown bears gain weight rapidly during late summer and autumn (fall), reach their maximum mass just before denning, then lose weight (up to 40% of total mass for females) over the winter hibernation.
Males average larger than females, in a given population. (B147)
Males average larger and heavier than females. (D243)
Males are about 1.2 to 2.2 times larger than females. (B490.26.w26)
150 - 780 kg (330 - 1,716 lb). (B144)
147 - 680 kg (324 - 499 lb) but with some individuals up to 700 kg (1,700 lb). (B180.w3)
Variable, 80 to more than 600 kg. (D243)
Weights vary considerable between populations. (D284.w3)
Size varies through the brown bear's range:
In southern Alaska and islands (e.g. Kodiak Island, Admiralty Island), these bears may reach 780 kg. (B147)
In Yellowstone in one study, 102 - 324 kg, average 181 kg. (B147)
In Europe males may reach to about 200 kg. (B422.w14)
In Northern Europe and Siberia usually about 150 - 250 kg. (B147)
In southern Europe, 70 kg. (B147)
The largest brown bears are those with fish or meat in their diets. (B285.w4)
In Europe, up to 200 kg (the Kodiak bear may reach 1,000 kg). (B421.w1)
The heaviest individuals are found in coastal Alaska. In Eurasia, weight increases from west to east with the largest found in coastal Siberia and Kamchatka. (D243)
Ursus arctos middendorffi - Alaskan brown bear usually reaches 360 - 545 kg by eight or nine years old and may reach 770 kg (1,700) lb. (B180.w3)
Individuals of 1,670 lb (for a Kodiak bear in a zoo) and 1,656 lb for another male Ursus arctos middendorffi from Kodiak Island have been recorded. (B288.w11)
Size variations may be partly due to genetics but nutrition is involved since bears from small populations raised in zoos may get quite large. (B406.36.w36)
Bears eating a lot of animal protein (salmon and ungulates) are heavier than those eating mainly vegetable matter. The heaviest weights are recorded for bears from coastal Alaska with access to salmon. (B490.26.w26)
In a given population, bears feeding at dump sites may be heavier than other bears not using this food resource. (D284.w3)
A comparison of data from various North American populations of brown bears found that body size was significantly correlated with diet (r = 0.87, p < 0.01). Bears with access to meat, and particularly salmon, had greater body mass than those on mainly vegetation diets. (J30.77.w3)
Bears gain weight considerably in the autumn, putting on fat before hibernation. (B147, B285.w4)
Bears gain weight, mainly as fat, rapidly in late summer and autumn (fall), reach peak mass just before hibernation, lose weight during hibernation and may continue losing mass after emerging from the den until food resources improve during spring. (B490.26.w26)
Males:
135 - 545 kg (300 - 1,200 lb), rarely up to 725 kg (1,600 lb). (B285.w4)
In southwest Yukon, males 139 kg. (B147)
The heaviest individuals are found in coastal Alaska: mean 389 kg; on islands (e.g. Kodiak) mean 312 kg. (D243)
Siberia males 140 - 320 kg. (D243)
Interior Alaska mean 243 kg. (D243)
West Brooks Range, Alaska, mean 155 kg. (D243)
Yellowstone National Park, Wyoming, mean 193 kg. (D243)
Interior of British Columbia, mean 117 kg. (D243)
Jasper National Park, Alberta, mean 92 kg. (D243)
Northern Yukon, mean 140 kg. (D243)
Northwestern Mackenzie, Northwest Territories, mean 159 kg. (D243)
In Russia, males may reach up to 400 kg (880 lb). (B288.w11)
Average about 200 kg (450 lb) and maximum usually up to 500 kg (1,100 lb). (B406.36.w36)
A study of northern interior Canadian grizzly bears in the Yukon found the average weight of 40 mature males to be 139 kg; the heaviest caught weighed 240 kg. (D283.w3)
Heaviest weights are recorded for bears from coastal Alaska: average 357 kg for males, versus 145 kg for males from the Yukon (B490.26.w26)
Varying from as low as 135 kg to as high as 389 kg, for means form different North American populations. (D284.w3)
One study found that males may lose about 20% of their body mass over hibernation, then gain 28% to the end of the following autumn. Other studies have shown 18%, 30% 24 and 25% weight loss over winter for adult males, and 34-50% weight gain. (D284.w3)
A study in Europe found that males from Sweden and Norway (northern Europe) had asymptotic body masses of 201 +/- 4 kg in spring, 273 +/- 6 kg in autumn, and males from Slovenia and Croatia (southern Europe) had asymptotic masses of 245 +/- 25 kg and autumn masses of 243 +/- 24 kg. The differences between southern and northern European bears were not significant. Northern bears gained weight in spring, while southern bears lost weight at this time; this was probably associated with more available protein-rich food in spring in the northern area. (J185.X.w1)
Females:
Average about 135 kg (300 lb), and maximum usually up to 280 kg (600 lb). (B406.36.w36)
Females may lose 40% of their body weight over winter while hibernating and producing and feeding cubs. (B285.w4)
In southwest Yukon, 95 kg. (B147)
The heaviest individuals are found in coastal Alaska: mean 207 kg; on islands (such as Kodiak) mean 202 kg. (D243)
Siberia females 100 - 200 kg. (D243)
Interior Alaska mean 117 kg. (D243)
West Brooks Range, Alaska, mean 112 kg. (D243)
Yellowstone National Park, Wyoming, mean 135 kg. (D243)
Interior of British Columbia, mean 58 kg. (D243)
Jasper National Park, Alberta, mean 55 kg. (D243)
Northern Yukon, mean 83 kg. (D243)
Northwestern Mackenzie, Northwest Territories, mean 99 kg. (D243)
A study of northern interior Canadian grizzly bears in the Yukon found the average weight of 21 females to be 95 kg; the heaviest caught weighed 125 kg. (D283.w3)
Heaviest weights are recorded for bears from coastal Alaska: average 226 kg for females, versus 98 kg for females from the Yukon. (B490.26.w26)
Varying from as low as 90-95 kg to as high as 202-213 kg, for means from different North American populations, and including seasonal variations. (D284.w3)
For an individual bear, variation in weight is greater in females than in males, both in relative and absolute terms; older females may vary their weight by as much as 70% of their spring weight. (B490.26.w26)
A study in Europe found that females from Sweden and Norway (northern Europe) had asymptotic body masses of 95 +/-2 kg in spring, 158 +/-4 kg in autumn, and females from Slovenia and Croatia (southern Europe) had asymptotic body masses of 115 +/- 9 kg in spring, 141 +/-9 kg in autumn. The differences between southern and northern European bears were not significant. Northern bears gained weight in spring, while southern bears lost weight at this time; this was probably associated with more available protein-rich food in spring in the northern area. (J185.X.w1)
A female lost 45 kg, an average of 378 g/day, over a period of 119 days while giving birth and suckling cubs, compared to 24 kg in 85 days the following winter when not pregnant. On average, bears in this study denned for just over three months, from late November/early December, to late February/early March, and lost 20-25% of their body mass over this time. (J200.34.w1)
A study of adult females during hibernation and lactation found that body mass was 161 +/- 10 kg; bears lost weight over hibernation, maintained body weight in summer and gained weight in fall (autumn). For non-lactating bears, mass loss during lactation averaged varied, being as much as 500 g/day in large individuals. In lactating females, mass loss in the den was 95% higher than for non-lactating individuals of the same mass. (J30.73.w3)
Neonate / Young
SUMMARY: Cubs weigh less than 1% of maternal weight, about 285 - 600 g (9 oz to 1 lb 5 oz).
Less than 1% of maternal weight. (B285.w4)
About 350 g. (B421.w1, B422.w14)
About 450 g (1 lb). (B180.w3)
400 - 500 g (14 - 18 oz). (B144)
About 500g. (D243, B490.26.w26)
Moscow zoo data: about 500 g. (D243)
For North American bears, about one and a half pounds. (B288.w11)
A female Kodiak bear cub, zoo born, was 600 g (1 lb 5 oz.). (B288.w11)
European brown bear cubs at the Paris Zoo weighed 265 - 380 g (about 9 - 13 oz). (B288.w11)
Zoo data for Ursus arctos middendorffi: 400 g average. (D247.6.w6)
736 g at eight days old, for two hand-reared Ursus arctos middendorffi (Kodiak bear) cubs at Buffalo Zoo. (J23.9.w3)
779.6 g (male) and 624 g (female) for twin Ursus arctos middendorffi (Kodiak bear) cubs at Houston Zoo. (J23.9.w4)
A study of three sets of mother-reared twins found a growth rate of 98 +/- 22 g/day during the hibernation period, to give cubs weighing 5.1 +/- 0.8 kg by the time of den emergence, followed by increased growth rate, reaching a maximum of 605 +/- 115 g/day. Pre-hibernation mass of the cubs was 102 kg. (J30.73.w3)
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Mar 3, 2020 19:45:37 GMT -5
Post by brobear on Mar 3, 2020 19:45:37 GMT -5
SUMMARY: Growth rate is highly variable depending on food intake. Hand-reared cubs have variously reached between about 1.7 and 2.5 kg by one month, 4.3 - 6.4 kg by two months, 7.4 - 8.5 kg by three months, 20 kg by four months and as much as 50 kg at seven months. Wild cubs may reach 15 kg at three months. In the wild, young-of-the-year may range from 2.0 - 27 kg and yearlings from 9 - 37 kg. Growth may continue after puberty (four to six years), even to 10-11 years of age in southern Alaska.
About 15 kg by three months old. (D243)
Young-of-the-year 2 - 27 kg; yearlings 9 - 37 kg. (D243)
Growth may continue after puberty (four to six years), even to 10-11 years of age in southern Alaska. (B147)
Both males and females continue growing throughout their lives; females reach 95% of their maximum weight by the time they are nine years old, but males reach 95% of their maximum weight at nearly 14 years of age. (B490.26.w26)
In cubs and yearlings, males and females may be similar in size, but sexual dimorphism may be apparent from the age of two years. (D284.w3)
A study of brown bears in Sweden found no difference in growth rates between males and females up to two years of age. (J396.54.w1)
Growth is rapid from six months to 2.5 years, then is more moderate, and is faster in males than in females, with females reaching 95% of their final size in most parameters by 4.5 years of age, while males show a growth rate twice as high as that of females from 6.5 to 15.5 years or more. Males reach their full size by age 6-11 (depending on which measurements are taken). (D284.w3)
For two hand-reared Ursus arctos middendorffi (Kodiak bear) cubs at Buffalo Zoo: (J23.9.w3)
Age (days) 8 15 22 29 36 43 50 57 64 71 78 85
Male (g) 736 1077 1303 1686 2210 2663 3458 4082 4875 5556 5781 6690
Female (g) 736 1077 1303 1756 2210 2663 3458 3968 4705 5385 5952 6633
For two hand-reared Ursus arctos middendorffi (Kodiak bear) cubs at Houston Zoo: (J23.9.w4)
Age (weeks) 0 1 2 3 4 5 6 7 8 9 17
Male (g) 779.6 978 1602 2300 3260 4220 5050 5440 6420 7400 24,970
Female (g) 624 680 964 1660 2320 2980 3630 4310 5130 5440 18,160
For five orphaned hand-reared European brown bear cubs:
Age 29 - 43 days, 54 g weight gain per day (two cubs); age 44 - 81 day, 120 g weight gain/day (four cubs); age 82-114 days, weight gain/day 188 g (four cubs); age 115-133d, weight gain/day 101 g (five cubs); age 135-185 d, weight gain/day 101g (five cubs); age 222-305 d, weight gain/day 161 g (three cubs); age 306 - 684 d, weight gain/day 100 g (three cubs); age 685-1,387 d, weight gain/day 46 g (two cubs). Note: mass of hand-reared cubs averaged 1.3 to 2.7 times heavier than that of wild cubs of the same ages; this is due to greater food availability. (J54.12.w1)
For one Ursus arctos middendorffi (Kodiak bear): birth 600g; 8 days 715g; 15 days 1.5 kg; 29 days 2.515 kg; 36 days 3.025 kg; 49 days 4 kg; 71 days 6 kg; 92 days 8.5 kg; 4 months 13 kg; 5 months 21 kg; 6 months 32.5 kg; 7 months 50 kg. (J23.4.w1)
Zoo data for Ursus arctos middendorffi: average weight at one month 1.7 kg, at two months 4.3 kg and at three months 7.4 kg. (D247.6.w6)
A study of three sets of mother-reared twins found a growth rate of 98 +/- 22 g/day during the hibernation period, to give cubs weighing 5.1 +/- 0.8 kg by the time of den emergence, followed by increased growth rate, reaching a maximum of 605 +/- 115 g/day. Pre-hibernation mass of the cubs was 102 kg. During maternal hibernation, cubs gained 0.7 +/- 0.1 kg for every 1.0 kg of mass loss by their dam over the normal hibernating loss. (J30.73.w3)
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Mar 14, 2020 7:42:00 GMT -5
Post by brobear on Mar 14, 2020 7:42:00 GMT -5
Frank321: "Magical formulas" versus speculations? Let's test the accuracy of the two. The famous "quadratic formula" is said to give the roots for any quadratic equation given the variables a, b, and c are given. Let's consider the quadratic 3x^2 - 4x - 3= 0, plugging these values into the quadratic formula which derives the expressions and , gives the roots {-0.54, 1.87}. Factoring this quadratic out, we recieve the same values. This gives us a 50% chance of choosing correctly if we choose either value of x over the other (given there are two values to choose from, and only one is correct). Now on the other hand, let's see the results of speculation: "The boar was small," according to Ben East in Bears, "hardly more than 150 pounds, but still big enough to be a formidable antagonist . . . the men guessed him at four hundred pounds." www.bowhunting.net/bearhunting.net/bear2.html"Adolph Murie, the famous naturalist, once said, "A bear a long distance from a scale always weighs more." The general public often misjudges the weights of black bears. While they are large, they are not the 4,000-pound beasts that some visitors to the Great Smoky Mountains National Park describe." www.americanbear.org/Size.htmAnybody who has the slightest ability as a logician can realize that mathematical formulas are generally far more accurate than mere estimations. The ability of somebody to estimate the size (or length, height, and et cetera) depends on their abilities at visual-spacial processing that's influenced by areas of the cerebral coretex. Being a so-called "expert" won't help much at all. EDIT: As another note, you give the connotation that Russians abhor tigers arbitrarily. There is no reason to believe this--you claim that western civilization is is biased towards the lion, yet many hunters go to Africa every year to hunt lions. Because tigers are hunted in Siberia does not mean their own people dislike them. |
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Mar 21, 2020 20:18:12 GMT -5
Post by King Kodiak on Mar 21, 2020 20:18:12 GMT -5
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Post by brobear on Mar 21, 2020 20:23:49 GMT -5
Quote: THE CARPHATIAN BROWN BEAR FROM ROMANIA AVERAGES 268 KG (590 LBS), WITH A MAX WEIGHT OF 440 KG (970 LBS).
*Wow! So these European brown bears ( in the realm of Dracula ) are as big if not bigger than Russia's Ussuri brown bears. Fascinating.
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Mar 21, 2020 20:28:32 GMT -5
Post by King Kodiak on Mar 21, 2020 20:28:32 GMT -5
Quote: THE CARPHATIAN BROWN BEAR FROM ROMANIA AVERAGES 268 KG (590 LBS), WITH A MAX WEIGHT OF 440 KG (970 LBS). *Wow! So these European brown bears ( in the realm of Dracula ) are as big if not bigger than Russia's Ussuri brown bears. Fascinating.
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Post by brobear on Mar 22, 2020 3:12:09 GMT -5
Quote: THE CARPHATIAN BROWN BEAR FROM ROMANIA AVERAGES 268 KG (590 LBS), WITH A MAX WEIGHT OF 440 KG (970 LBS). *Wow! So these European brown bears ( in the realm of Dracula ) are as big if not bigger than Russia's Ussuri brown bears. Fascinating.
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Post by King Kodiak on Mar 22, 2020 6:58:10 GMT -5
Yeah, unfortunately i have yet to find any info on Gloriosus. Maybe with my new book i will.
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Post by brobear on Mar 28, 2020 6:33:32 GMT -5
By Ursus Arctos - carnivora.net/brown-bear-ursus-arctos-t2935.html 835 pounds is an average for a sub-adult 8-9 year old Kodiak. Notice the section under Adult Weight. "Willard A. Troyer writes: Four males weighed in the fall ranged from 960 - 1,346 pounds and three spring species ranged from 813 - 1190 lbs." Take the median value between 813 and 1190, and you'll come up with an average of about 1000 lbs for boar Kodiak Brown Bears. ADF&G technical report on Alaskan Grizzlies suggests an average weight of 441 kg, or 974 lbs for mature (>10 y.o.) Brown Bears from Alaska Peninsula. |
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Post by brobear on Mar 28, 2020 16:31:33 GMT -5
Ok but in the fall, the 4 males weighted from 960 to 1345. Also, that chart is from 1969, its very very old, i believe these sites are way more updated. Looks like the average really is closer to 1000 lbs for the 9 year old + males. You were right; except let's move it up to 10+ year old bears. 10 years old is the number Big Bonns used as the line between sub-adult and adult. Also Doug Peacock. Why not us too. |
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Mar 28, 2020 16:54:36 GMT -5
Post by King Kodiak on Mar 28, 2020 16:54:36 GMT -5
Ok but in the fall, the 4 males weighted from 960 to 1345. Also, that chart is from 1969, its very very old, i believe these sites are way more updated. Looks like the average really is closer to 1000 lbs for the 9 year old + males. You were right; except let's move it up to 10+ year old bears. 10 years old is the number Big Bonns used as the line between sub-adult and adult. Also Doug Peacock. Why not us too.
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Mar 28, 2020 17:05:54 GMT -5
Post by brobear on Mar 28, 2020 17:05:54 GMT -5
You were right; except let's move it up to 10+ year old bears. 10 years old is the number Big Bonns used as the line between sub-adult and adult. Also Doug Peacock. Why not us too.
You can call a 6-year-old grizzly an adult if you consider an 11-year-old boy an adult.  |
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Mar 28, 2020 17:15:39 GMT -5
Post by King Kodiak on Mar 28, 2020 17:15:39 GMT -5
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Mar 28, 2020 17:30:20 GMT -5
Post by King Kodiak on Mar 28, 2020 17:30:20 GMT -5
" Adult bears were 5 years and older unless otherwise stated"
Brown bears are already "adults" by 5/6 years old, although yes, we know they keep growing until about 12 years old. So a 6 year old brown bear is considered an "adult" but not fully grown. |
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Mar 28, 2020 18:04:19 GMT -5
Post by King Kodiak on Mar 28, 2020 18:04:19 GMT -5
The great bear Almanac by Gary Brown.
Brown bears 7 to 8 years old are considered mature.
Brown bears 8 to 10 years old are considered fully grown.
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Mar 29, 2020 3:56:05 GMT -5
Post by brobear on Mar 29, 2020 3:56:05 GMT -5
The great bear Almanac by Gary Brown... ( Peter told me in the old AVA that this book is not a great source of information ).
Brown bears 7 to 8 years old are considered mature.... They are sexually mature.
Brown bears 8 to 10 years old are considered fully grown.... because all of their bones are fused and complete; but they are far from fully grown.
King Kodiak... you are not only arguing with me, but also with Doug Peacock, Ursus arctos, and Big Bonns.... all of which consider any male grizzly below the age of 10 not a full-grown bear. I don't believe there is some scientific specific body part or any such thing to go by. These guys know bears. They are bear-savvy.
This is not something we need to have a 20-page argument about. If you want to call an 8-year-old bear a full grown bear - just do it.
*I will edit and add this: What Doug Peacock was talking about was a mature male grizzly old big enough and strong enough to fight his way to a carcass or a female. He concluded roughly a 10-year old with no dominant males likely below that age. This is not some chalk-board figure made by mad scientists looking at bones and analyzing blood cells and hair particles. This is purely being bear savvy. Same with Ursus Actos and Big Bonns.
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Post by King Kodiak on Mar 29, 2020 6:39:48 GMT -5
Dont worry brobear, we wont argue over this, lol. But if you read my last 2 replies, #258, and #259, i specifically said that brown bears 6 years old are considered "adults" but not fully grown. There is the confusion. Bears can be "adults" but they keep growing. In reply #258, those are biologists talking. And in reply #259, the great bear almanac, Gary brown knows bears in and out, i would not say he does not know crap.
The confusion is with the term "adult". Brown bears are considered adults way before 10 years old. They keep growing until 11-12 or even more, no one denies that, we all know that.
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