CC, for "CopyCat" or "Carbon Copy" (born December 22, 2001), is a brown tabby and white domestic shorthair and the first cloned pet. CC's surrogate mother was a tabby, but her genetic donor, Rainbow, was a calico domestic shorthair. The difference in hair coloration between CC and Rainbow is due to epigenetic re-programming, which normally occurs in a fertilised embryo before implantation.
In September 2006, CC gave birth to four kittens. The litter included two males named Tim and Zip and one female named Tess who were fathered naturally. The remaining kitten, a female, was stillborn. This incident was the first time a cloned pet gave birth. CC appears to be free of the cloning-related health problems that have arisen in some other animal clones. "CC has always been a perfectly normal cat and her kittens are just that way, too," says Kraemer. "We’ve been monitoring their health and all of them are fine, just like CC has been for the past five years."
- Science Magazine Report Archived 2013-09-05 at the Wayback Machine.
- Berkowitz, Lana (May 17, 2011). "First cloned cat turns 10". Houston Chronicle. Archived from the original on December 24, 2015. Retrieved 2015-09-12.
- "Copy Cat: First Cloned Cat Produces 3 Kittens". December 13, 2006. Archived from the original on December 14, 2015. Retrieved 2015-09-12.