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.
Height: From the bottom of the paw, standing flat on the ground, to the highest point on the shoulder, a polar bear can reach up to 5.3 feet in height. From the tip of the nose, to the tip of the tail, polar bears generally range from 8 to 8.4 feet in length (Brown 1993, p 63-64).When a polar bear stands upright, the bear can reach a height of 10 feet or more.rom the tip of the nose, to the tip of the tail, polar bears generally range from 8 to 8.4 feet in length (Brown 1993, p 63-64). When a polar bear stands upright, the bear can reach a height of 10 feet or more.