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.
Habitat Wildebeests live in Africa. They can be found from Kenya to South Africa, living in woodlands and grasslands. They eat mainly grass and other smaller vegetation. Grasslands are drier areas that have, as the name implies, a lot of grass and woody plants.One type of grassland common in Africa is the savanna. Many wildebeests can be found grazing there. Woodlands are areas filled with trees so close that they can form a canopy.hysical Description Many people find wildebeests to be odd looking creatures. They have horns and hindquarters similar to that of antelopes, yet a face, mane, and tail that look a lot like those of horses. Because of their odd physical appearance, they were called âwild beastâ or, in Afrikaans, wildebeest.