Definition. Night leg cramps, also called nocturnal leg cramps, are painful, involuntary spasms, aching or contractions of muscles in your legs. In most cases, night leg cramps involve your calf muscles, but muscles in your feet or thighs may cramp as well.1  Causes.ight leg cramps, also called nocturnal leg cramps, are painful, involuntary spasms, aching or contractions of muscles in your legs.
Tlingit and neighboring peoples. The greatest territory historically occupied by the Tlingit extended from the Portland Canal along the present border between Alaska and British Columbia, north to the coast just southeast of the Copper River delta in Alaska.
There are two main polar bear populations in Alaska. The Chukchi population is found off in the western part of Alaska near the Wrangell Islands, and the Beaufort Sea population is located near Alaskaâs North Slope.ost brown bears in Alaska are grizzly bears (the subspecies of brown bear found throughout North America), but Kodiak Island is home to Kodiak bears, another subspecies that is the largest type of brown bear in the world. The brown bear is the top predator in Alaska.