For the first time, researchers have used the cloning method that produced Dolly the sheep to create two healthy monkeys, bringing science an important step closer to being able to do the same with ...

Since Dolly the sheep was cloned in 1997, biologists have cloned at least 16 other species, from mice and goats to pigs, cats, dogs and ferrets. For a couple of years starting in 2004, it looked like ...

Researchers used the model organism Caenorhabditis elegans to optimize a new technique, leading to the development of the method called Nested CRISPR. This cloning-free method involves the insertion ...