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.
Polar bears are the largest carnivorous land mammals on Earth. They are about 7-8 feet long measured from nose to the tip of their very short tail. Male polar bears are much larger than the females. A large male can weigh more than 1,700 pounds, while a large female is about half that size (up to 1,000 pounds).ost polar bears occur north of the Arctic Circle to the North Pole. There are some populations south of the Arctic Circle in Hudson Bay, Manitoba, Canada. Polar bears live in Alaska, Canada, Russia, Greenland and some northern islands owned by Norway like Svalbard.