The first cloned mammal was a sheep named Dolly. Dolly is truly a marvel of modern science. It’s amazing that we are able to clone living beings, especially mammals.
Anyway, I just learned this fact today… Dolly was cloned from a mammary gland (breast tissue) cell. In recognition of and tribute to this source, the scientists who created her named her after Dolly Parton.
Source: Dolly the sheep (Wikipedia)