Cloning

Scientists at the company Colossal Biosciences have derived induced pluripotent stem cells from elephants, which they say could boost efforts to resurrect woolly mammoths.

Przewalski's horses cloned from a stallion that died in 1998 could help reintroduce much needed diversity to the species that was once declared extinct in the wild.

Scientists have created a healthy rhesus monkey clone by providing the cloned embryo with a healthy placenta, paving the way for more efficient cloning of primates and other mammals.

Sir Ian Wilmut was key to the successful creation of Dolly, the first mammal to be cloned from an adult cell, in 1996.

Researchers in Russia recently dissected a mummified bison dating back to around 8,000 years ago. The remains are so well preserved that the team thinks the extinct animal could be cloned, but others disagree.

A Chinese pet-cloning company has successfully cloned an Arctic wolf for the first time. The adorable pup is proof that cloning could be used to help save endangered species.

Researchers have discovered that 4,500-year-old seagrass meadows in Shark Bay, Western Australia, are actually the world's largest clone.

Here's a look at the science for why we haven't cloned any humans yet.