Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm characterized by rapid and irregular beating.
Emperor penguins owe their scientific name (Aptenodytes forsteri) to their discoverer, the first natural scientist to reach Antarctica, the German Johann Reinhold Forster. Forster came to Antarctica in 1770, on Captain James Cook's ship, and saved Cook's life during the voyage.
The Chinstrap Penguin lives around the South Sandwich Islands, South Orkeys, Bouvet Island, Balleny, South Shetland, and Antarctica. The isolated islands and the icebergs found in the sub Antarctic areas including the Antarctic Peninsula is where they live. They tend to avoid areas of heavy ice packs.he feet of the Chinstrap Penguin are very strong. They also have a bill that is short and that is black in color. They survive in water that is much colder than most species of penguins.