A muscle cramp is a strong, painful contraction or tightening of a muscle that comes on suddenly and lasts from a few seconds to several minutes. It often occurs in the legs. A muscle cramp is also called a charley horse. Nighttime leg cramps are usually sudden spasms, or tightening, of muscles in the calf.The muscle cramps can sometimes happen in the thigh or the foot.t often occurs in the legs. A muscle cramp is also called a charley horse. Nighttime leg cramps are usually sudden spasms, or tightening, of muscles in the calf. The muscle cramps can sometimes happen in the thigh or the foot.
Where do penguins live? King Penguins are found in Tierra del Fuego, Subarctic islands and South Georgia Island. Chinstrap Penguins are found in Antarctica, South Sandwich Islands, South Shetland, South Orkneys, South Georgia Island Bouvet, Peter Islands and Balleny.
Penguins are especially abundant on islands in colder climates, and they tend to remain in areas that are isolated and free of most predators. In all, there are 17 different species of penguin in the world, and not all of them live in cold climates like we imagine.The majority of penguin species do prefer colder climates, although there are even some penguins that are native to some of the tropical climates located right at the equator.enguins are especially abundant on islands in colder climates, and they tend to remain in areas that are isolated and free of most predators. In all, there are 17 different species of penguin in the world, and not all of them live in cold climates like we imagine.