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 anatomy of the polar bear allows it to enter a partial hibernation state. Temperature is reduced and the circulatory system slows. They can still move about and react if endangered, but their body is programmed to conserve energy. Size: 7 to 10 feet in length for males. Females about 5 to 7 feet.