An arrhythmia (also called dysrhythmia) refers to what is usually an irregular heartbeat. The heart rate can be fast, slow, or irregular, taking into consideration age and activity. For example, a newborn's heart beats much faster than a 5-year-old child's heart. A fast heart rate is called tachycardia. A slow heart rate is called bradycardia. Some irregular heartbeats are normal: Sinus arrhythmia is the normal variation in heart rate that accompanies breathing in and out.
Image Source. The awesome-looking Toyger is probably the most remarkable striped breed of cat in the world. This breed is the result of breeding domestic shorthaired Tabbies to make it looks like a âtoy tigerâ. The breeding started in the 1980s.
The massive paws, teeth, and rippling muscles of tigers scream king of the predators.. Tigers belong to the genus Panthera, or big cats. Other species in the genus are Leopards, African lions, Snow Leopards and Jaguars.Tigers, named Panthera tigris, include eight subspecies, distinguished by size, coloration, and geographic distribution. Three of these subspecies are extinct.They are the Caspian, Bali and Javan tigers. The five remaining subspecies are Bengal, Siberian, Sumatran, Indo-Chinese and, South China tigers.igers, named Panthera tigris, include eight subspecies, distinguished by size, coloration, and geographic distribution. Three of these subspecies are extinct. They are the Caspian, Bali and Javan tigers.