Scientists at the University of New South Wales announced in March 2013 that the very recently extinct gastric-brooding frog would be the subject of a cloning attempt to resurrect the species.

The problem with earlier cloning attempts, Dr. Wilmut said, was that the DNA from the donor had been out of synchrony with that of the recipient cell.

With no soft tissue, the cloning attempt died, but not the interest.

In 2015, cloning technology is sufficiently advanced that the "Sixth Day" laws prohibit reproducing a complete human because the first human cloning attempt came out deformed and retarded.

A12 Will this human cloning attempt prove to be a milestone or a forgettable blunder?

The Challenge/Response protocol also allows the Token's keys to be changed so resisting Token cloning attempts.

The first cloning attempts in 2003 failed.

Their cloning attempts failed, and eventually they turned to the Confederacy of Independent Systems when they learned about the bounties that had been placed on Jedi.

She stated that the a machine called the RMX 2010 was used in the cloning attempts, and exhibited it publicly.

For that reason Lewis D. Eigen has argued that human cloning attempts will be made in the next few years and may well have been already begun.