There is many example of animal being cloned the most well know is Dolly the sheep as she was the first cloned mammal. Another is a cat named CC that was cloned on December 22, 2001 and was the first cat to be cloned.The first successful cloned mouse was Cumulina("20 Animals That have Been Cloned").
Noto and Kaga where the most successful cloned cows and have been duplicated several thousand time and have paved the way for clone engineers to produce better milk and meat. Ombretta was the first successful cloning of an endangered animal(mouflon) and shows how cloning can help "revive" endangered animals. The cloning of a mules has created a mule(idaho gem) that unlike normal mules can breed("20 Animals That Have Been Cloned").