After this period, the patient is in a new steady state in which further sodium and water losses do not occur. However, in many patients with diuretic-induced hyponatremia, the disorder first appears after many months of uncomplicated thiazide therapy [5,12].
Out of more than 480 shark species, only three are responsible for a double-digit number of fatal, unprovoked attacks on humans: the great white, tiger, and bull; however, the oceanic whitetip has probably killed many more castaways, not recorded in the statistics.
The main predators of the walrus are polar bears, killer whales, and humans. Humans have hunted the walrus since the days of the Vikings and early Native Americans. It is the Atlantic walrus that was the hardest hit by humans because the population centers of the world were in their area (northern Europe) for the longest time.