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.
Little blue penguins are the smallest species of penguin in the world. They are found exclusively in Australia and New Zealand. Size 12 inches tall and weigh 2 to 3 pounds. Diet Small fish and occasionally squid and krill. Lifespan Average of 6.5 years, but some individuals have been known to live up to 20 years.