The nucleus of a skin cell taken from the ear of an adult male Afghan (left) was transferred into an egg cell of a yellow Labrador retriever (right). The altered egg was implanted in the Labrador. The resulting clone, Snuppy, (center) was delivered by caesarian section after 60 days.

Scientists say this type of cloning, known as somatic-cell nuclear transfer (SCNT), may be a way to preserve rare species.

Read the Related News Story