Pet cloning is real, commercially available, and has been since the mid-2010s. For $50,000, you can clone a dog or cat through ViaGen Pets & Equine, the only company offering the service in the United States. A Chinese company called Sinogene also clones pets, charging roughly $78,000 for a dog and $51,000 for a cat. The technology works, hundreds of cloned pets have been delivered to owners, but the result isn’t quite what most people expect.
How Pet Cloning Works
Pet cloning uses a technique called somatic cell nuclear transfer. A veterinarian takes a small skin biopsy from your pet, either while the animal is alive or shortly after death. Those cells are cultured in a lab and frozen for storage. When you’re ready to proceed, a technician removes the nucleus from a donor egg cell (typically harvested from a surrogate animal of the same species) and replaces it with the DNA from your pet’s preserved cells. The egg and the donor cell are fused together, and the resulting embryo is implanted into a surrogate mother, who carries the pregnancy to term.
The process requires donor eggs and surrogate mothers, meaning multiple animals are involved beyond your pet. Each cloning attempt uses many reconstructed embryos because most won’t develop successfully. Based on data from over a thousand cloned dogs, the live birth rate sits above 2% of transferred embryos. That’s considered moderately higher than success rates for cloning other species, but it still means dozens of embryos are needed per successful birth.
The First Cloned Dog
The science behind pet cloning traces back to 2005, when researchers at Seoul National University in South Korea produced Snuppy, an Afghan hound cloned from an adult dog’s cells. Snuppy was the world’s first cloned dog, and the achievement was significant because dog reproduction is unusually complex compared to other mammals, with features that had defeated earlier attempts. That same South Korean expertise later became the foundation for commercial pet cloning services.
What a Clone Actually Looks Like
This is where expectations and reality diverge. A clone shares 100% of its nuclear DNA with the original animal, but that doesn’t mean it will look or act the same. Research from North Carolina State University comparing cloned pigs to their genetic originals found clear differences in both appearance and behavior. Physical traits like size, weight, and coat pattern can vary because the DNA gets modified during the cloning process in ways that alter how certain genes are expressed. This is called epigenetic variation, and it’s why a cloned cat with a calico coat pattern may have patches of color in completely different places than the original.
Personality is even less predictable. The same research concluded that cloned animals are “not homogeneous,” and that you cannot expect a cloned pet to behave like the original, even setting aside the fact that the clone will grow up in a different environment. Cloning creates an animal within the normal range for its breed, but with increased variability in some traits. Think of it less like copying a file and more like having an identical twin raised in a different household.
Health Risks and Complications
Cloned pets are generally healthy, but they do carry higher risks of certain birth defects. A large-scale study analyzing over a thousand cloned dogs found cleft palate occurring at a rate of 2.9%. An enlarged tongue (macroglossia) appeared in about 1% of live births, and excessive muscle growth (hypermyotrophy) occurred in nearly 5% of cases. A combination of enlarged tongue and excessive muscle growth showed up in close to 10% of all cases.
Outside of those specific conditions, the news is more reassuring. Fewer than 2% of cloned dogs in that dataset died prematurely, and those deaths were generally related to surrogate mother care rather than genetic problems in the clones themselves. No increased incidence of disease has been observed or reported in cloned dogs assessed as healthy at birth. Still, the birth defect rates are notably higher than in naturally bred animals.
The Welfare Question
One aspect that rarely makes it into the marketing materials is what happens to the egg donors and surrogate mothers. Cloning requires harvesting mature egg cells from donor animals and implanting embryos into surrogates who carry pregnancies that frequently fail. A review of 11 research studies documented abnormalities in developing embryos and suffering for both newborn clones and surrogate mothers across various cloning projects. Because the success rate per embryo is so low, a single cloning order can involve multiple surrogates undergoing repeated implantation cycles before one pregnancy succeeds.
Regulation in the United States
Pet cloning operates in a regulatory gray zone. The FDA has stated that it does not believe clones of non-food species present public health concerns, since companion animal clones don’t introduce new heritable traits into other animals. The agency has no specific legal basis to regulate pet clones under the new animal drug provisions of federal law. In practical terms, this means pet cloning companies in the U.S. operate without direct FDA oversight of the cloning process itself. There is no federal approval required, and no agency is evaluating the welfare of the animals involved in the process.
What You’d Need to Do
If you’re considering cloning a pet, the most time-sensitive step is preserving cells. A veterinarian takes a small skin biopsy, ideally while the animal is still alive, and the tissue needs to be kept cold and sent to a cloning company for cell culture and cryopreservation. If your pet has already died, viable cells can sometimes still be collected within a few days, provided the body has been refrigerated (not frozen). Companies like ViaGen offer tissue preservation kits that your vet can use, and storing the cells costs a fraction of the cloning fee, so some owners bank cells without committing to cloning right away.
The full process from starting the clone to bringing home a puppy or kitten takes roughly eight to twelve months, depending on the species and how quickly a surrogate pregnancy succeeds. You’ll receive a genetically identical animal that may look slightly different, will almost certainly have a distinct personality, and will need to be raised and trained from scratch like any other young pet.