Cloning to preserve endangered species

A conservation institute in the United States has produced wildcat kittens by cross-breeding cloned adults.

The Audubon Center for Research of Endangered Species says this is the first time that clones of a wild species have bred.

Eight kittens have been born in two litters over the last month, and all are apparently doing well.

The researchers say this development holds enormous potential for preserving a range of endangered species.