Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm characterized by rapid and irregular beating.
Emperor penguin - Aptenodytes forsteri. This is the largest species of penguins. Emperor penguins are only found on and around the Antarctic continent, on the thick pack ice and rarely on mainland. They have a pale yellow, open (breast and chin patch are one) patch on chin and breast. A long, thin and curved bill, typical for fish eaters. Very dark grey back and blue black head.
âWhere I liveâ. This species of penguin lives along the rocky coastline of southwest Africa, in the countries of South Africa and Namibia.ike all penguin species, the African penguin lives in the Southern Hemisphere. It also lives in a temperate climate, as do most species of penguin. Only a few species live as far south as Antarctica in an extremely cold climate.