The "King" of the bears - comparison between the Polar bear and the Brown bear

[brotherbear]

Size matters...
A grizzly can reach a greater size and weight in captivity than in the wild but a zoo cannot provide a polar bear with anything of greater weight-gain than seals, walrus, and beached whales. No captive polar bears have ever been known to reach the size of Goliath or Clyde. So, what does this mean?
It's all about food availability. Polar bears are larger because of their available prey. During the nineteenth century and into the early twentieth century, captive polar bears were often the size of black bears; from 200 to 400 pounds. In the wild a mature male polar bear averages roughly 1,000 pounds while some exceptional individuals reach upwards to 1,700 pounds!

Just how big can a Kodiak bear grow to be? I believe that 1500 pounds is probably a normal maximum seldom reached. Bart the Bear and a few other captive Kodiaks have reached this peak. The heaviest recorded wild Kodiak weighed 1656 pounds ( 751 kg ). However, as I would estimate maybe one out of perhaps a thousand male 10+ year old Kodiaks are ever actually weighed, I would not say that this was the biggest ever Kodiak bear living in the wild.
As for captive bears, there was a 15 year old Kodiak in the Cheyenne Mountain Zoological Park that was weighed at 1670 pounds ( 757 kg ). Even bigger were Goliath which was reportedly weighed in 1983 at 2000 pounds and Clyde which was reportedly weighed in 1987 at 2136 pounds.
shaggygod.proboards.com/board/66/kodiak-brown-bear-coastal

*Note: According to zoo director Terry Lincoln, Clyde probably weighed close to 2400 lbs a year earlier He still had a fat layer of 9 inches when he died. Reply