Virus is a microscopic organism that lives in a cell of another living thing. Although viruses are extremely small and simple, they are a major cause of disease. Some viruses infect human beings with such diseases as measles, influenza, and the common cold.
Passive Mobs. Passive mobs are composed of creatures that will never, under any circumstances, attack the player. Some passive mobs can be bred to create more of them, e.g. pigs can be bred to effectively farm them.
1 In 2006, Scamper, an extremely successful barrel racing horse, a gelding, was cloned. 2  The resulting stallion became the first cloned horse to stand at stud in the US. 3  In 2010, the first lived equine cloned of a Criollo Horse was born in Argentina, and was the first horse clone produced in Latin-America.