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 weather, the conditions, you can imagine itâa polar bear in a desert, with a swimming pool 50 centimetres deep. More Bad Luck For Depressed Polar Bear Abby Haglage July 23, 2014 The reason: frozen permafrost that once contained the lake water (like cement contains a swimming pool) had melted.