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.
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.