FollowingUnfollow SUCCESS! FollowingUnfollow. WebMD. 8,020 Answers. 353,508 Helpful Votes. 388 Followers. A. A healthy resting heart rate is between 60 and 100 beats per minute for adults. But the upper end of that range may mean a greater chance of serious health problems.ollowingUnfollow SUCCESS! FollowingUnfollow. WebMD. 8,020 Answers. 353,508 Helpful Votes. 388 Followers. A. A healthy resting heart rate is between 60 and 100 beats per minute for adults. But the upper end of that range may mean a greater chance of serious health problems.
The only other bear of a similar size to the polar bear is the Kodiak bear, which is a subspecies of brown bear. Adult male polar bears weigh 350â700 kg (772â1,543 lb) and measure 2.4â3 metres (7 ft 10 inâ9 ft 10 in) in total length.
Skin. Polar bears have black skin under which there is a layer of fat that can measure up to 4.5 inches (11.5 centimeters) thick. 1  On land (or on top of the sea ice) the polar bear's thick fur coatâ not its fatâprevents nearly any heat loss.2  In fact, adult males can quickly overheat when they run.kin. Polar bears have black skin under which there is a layer of fat that can measure up to 4.5 inches (11.5 centimeters) thick. 1  On land (or on top of the sea ice) the polar bear's thick fur coatâ not its fatâprevents nearly any heat loss.