It turns out Dolly the Sheep — the first cloned mammal ever — has relatives. Four other sheep — Daisy, Diana, Debbie, and Denise — were made from the same cell line.

And unlike Dolly, who was plagued with health problems throughout her life (prompting scathing critiques of cloning), these four sheep are living perfectly normal lives.

They’re currently between the ages of 7 and 9, or 60 in human years.

Dolly the Sheep will always be remembered as the dawn of the modern cloning movement. Her birth ushered in vast new genetic possibilities, but it also generated intense controversy.  

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She was developed at the University of Edinburgh in Scotland as a breakthrough in genetic technology —  scientists were able to take a cell from an adult sheep, implant it into an embryo, and create a new sheep.

It was, in a way, turning back the biological clock.

But creating life in a lab disturbed many people and fed nightmare scenarios of genetic manipulation changing the meaning of life.

If a sheep could be cloned, why not a human?

This particular question so bothered people that bans started to emerge across the world. In 2005, the UN unilaterally banned all human cloning and many countries ban the sale of cloned animal meat.

Even today, anxieties prevail. A new survey by Pew Research found that two-thirds of Americans do not want humans to be genetically enhanced in any way.

Since Dolly, many other animals have been cloned and research into genetic manipulation has dramatically expanded.

But if conducted within an ethical framework, cloning and genetic manipulation can be a force for good.

For example, disease can be better understood and treated through cloning and gene editing. An embryo could be stripped of hazardous birth defects, an adult could have her illness more precisely targeted, and humans could generally be made more resilient.

Currently, however, investments in stem cell research and gene editing more broadly is constrained and constantly dogged by criticism.

Maybe the placid fate of Dolly’s relatives could get more of the public on board with giving the science a chance.