A US biotech company on Wednesday announced it will auction off the right for five dog owners to have their furry best friend cloned, with bidding starting at 100,000 dollars.

"BioArts International ... will sell five dog cloning service slots to the general public via a worldwide online auction," the California-based biotech start-up said in a statement.

Registration for the auctions opens Wednesday. Bidding in that first auction begins on June 18 at 1300 GMT and runs for 24 hours, BioArts says on its bestfriendsagain.com website.

BioArts is the only company in the world licensed to clone dogs, cats and endangered species, the company statement says.

It uses the same cloning method that gave the world Dolly the sheep, the first mammal to be cloned in July 1996 from an adult cell.

Dogs are arguably the most difficult mammal to clone, according to BioArts.

"We may or may not perform any additional commercial dog cloning services after this auction," the company says on its website.