12 MEDICAL DEVICE REGULATIONS In Canada, devices of classes III and IV are subject to in-depth regulatory scrutiny,while class II devices require only the manufacturerâs declaration of device safety andeffectiveness before sale.
No problem: Polar bears in the study were seen swimming distances of 90 miles without any problems - and some bears went a lot further Scientists discovered that during the summer months, when sea ice is at its minimum, the bears were swimming farther and for longer periods of time than ever before in search of new hunting grounds.
The polar bear has an average weight of 900 to 1,500 pounds and is considered the world's largest bear with the brown bear, averaging 500 to 900 pounds a close second. The largest polar bear ever recorded was shot in Kotzebue Sound, Alaska in 1960 weighing a grizzly 1002 kilograms or 2,210 pounds and stood 11 feet 11 inches in height. The largest brown bear, a Kodiak bear, which is a subspecies of the brown bear, weighed in at over 2,500 pounds and was almost 14 feet tall. Polar Bears.