Most of the time, they are harmless and happen in healthy people free of heart disease. However, some abnormal heart rhythms can be serious or even deadly. Having other types of heart disease can also increase the risk of arrhythmias.
The internet meme doge is the Shiba Inu breed of dog. The Shiba Inu breed is native to Japan. Shiba is Japanese for Brushwood and Inu is Japanese for dog. The original person who caused the doge meme sensation actually didn't understand very much English.
The origin of the domestic dog is not clear. The domestic dog is a member of genus Canis (canines) that forms part of the wolf-like canids, and is the most widely abundant carnivore. The closest living relative of the dog is the gray wolf and there is no evidence of any other canine contributing to its genetic lineage. The dog and the extant gray wolf form two sister clades, with modern wolves not closely related to the wolves that were first domesticated.