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.
This is one of the three species of penguins classified as brush tail. This species of penguin has a black band that is very narrow under the head. Emperor Penguin. The largest of all penguins in the world is the Emperor Penguin.They tend to get plenty of attention too due to their size.Erect-Crested Penguin. The name of the Erect-Crest Penguin stems from the fact that they have yellow plumes above the eyes that are erect.Fiordland Penguin. You may hear the Fiordland Penguin referred to as the Tawaki. This is a species of crested penguins with a remarkable appearance.mperor Penguin. The largest of all penguins in the world is the Emperor Penguin. They tend to get plenty of attention too due to their size. Erect-Crested Penguin. The name of the Erect-Crest Penguin stems from the fact that they have yellow plumes above the eyes that are erect.