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.
The King penguin (Aptenodytes patagonicus) is the second largest species of penguin, next to the Emperor penguin.Size: King penguins are about three feet tall and weigh about 40 pounds.Life Span: The average lifespan of the King Penguin is 15 to 20 years in the wild.olor: King Penguins are black-backed and white-bellied with a dark head, an orange oval along the side of the face and a neon yellow patch decorating the top of the breast at the base of the neck. Also, an orange strip extends along the lower half of the beak.