Thyrotoxicosis is a clinical condition resulting from the action of excess thyroid hormone on tissues. The term hyperthyroidism is usually reserved for thyrotoxicosis caused by excessive production of thyroid hormone (Boxes 4 and 5). Other forms of thyrotoxicosis include thyrotoxicosis factitia and those associated with different forms of thyroiditis.
How Fast Can A Reindeer Run? The reindeer (Rangifer tarandus), also known as the caribou in North America, is a deer from the Arctic and Subarctic, including both resident and migratory populations. While overall widespread and numerous, some of its subspecies are rare and one (or two, depending on taxonomy) has already gone extinct. Normally travelling about 19â55 km (12â34 mi) a day while migrating, the caribou can run at speeds of 60â80 km/h (37â50 mph).
The reindeer travels the furthest of any land mammal with these migrations often containing thousands of reindeer. The caribou of North America can run at speeds up to 50 mph and can travel as many as 3,000 miles a year.The most extensive migrations occur in spring and fall.he reindeer (also known as the caribou) is found in large herds in the very north of the world. Reindeer inhabit both the Arctic Tundra and the North Pole regions which include parts of North America, Europe and Asia.