Cloning promises genetic copies, but a growing body of research across dogs, mice, cattle, and primates shows that clones begin diverging from their donors almost immediately. Thousands of unique ...

(Peter Finch/Stone/Getty Images) Scientists have pushed the limits of mammal cloning until the whole house of cards has come ...

A 20-year study has shown that, like photocopying photocopies, cloning doesn't produce perfect copies – with big implications for farming, conservation and de-extinction ...

In April of 2025, headlines across the world announced that the dire wolf had been brought back from extinction. This 130-150 lbs wolf species, about 25% heavier than modern-day gray wolves, had not ...

There is a limit on how many times a mammal can be cloned before suffering "mutational meltdown," Japanese scientists have ...

Scientists have cloned an endangered US animal for the first time, creating a black-footed ferret named Elizabeth Ann from the frozen cells of an ancestor in a landmark achievement that boosts ...

Here’s the cautionary tale you didn’t know you needed: cloning the same mouse in perpetuity will produce horrific affronts to ...

Elizabeth Ann seems like any other black-footed ferret, but she is remarkably different in a species that is already limited in numbers. She is cloned from the genes of an animal that died three ...

Scientists believe there are only a few hundred black-footed ferrets still living in the Western United States. The carnivores once thrived on the plains between Canada and Mexico, eating prairie dogs ...