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.
Penguins do not live in the northern hemisphere; nor do they live inland any distance from the ocean. They are not found in freshwater creeks and rivers. They are not found in â¦ Europe, North America or Asia, or in Arctic waters. It is perhaps more pertinent to mention where they do live. Four of the 17 species of penguins live along the coast of Antarctica and the Antarctic Peninsula. None are able to venture far inland on the Antarctic, as there is nothing on the Antarctic continent to support life.