Cloning

Cloning the horse is one step towards cloning a mammoth, researchers say.

How close are we to becoming a T. Rex dinner?

In 1993, Newsweek examined what looked like a dinosaur phenomenon the likes of which hadn't been seen since the first fossils were discovered: "Jurassic Park" and its sparking of a discussion about cloning.

Cloning dogs isn't as complicated as you might think. But you will need about $100,000.

Some animal activists are concerned about the ethics of cloning monkeys, but this scientist says researchers follow strict ethical rules.

If you start with one marbled crayfish, you can soon have millions.

Zhong Zhong and Hua Hua were cloned using the same technique that produced Dolly the sheep two decades ago.

Scientists once thought that Dolly's landmark status as the first cloned animal might have had something to do with arthritis.

The Afghan hounds will be monitored to study the health and longevity of re-cloned animals.

They are using different approaches to the de-extinction issue—and only one can be first.

And Injaz, as she's called, is pregnant, proving cloned camels "can reproduce the same as naturally produced camels."

Dr. Michael Zuk bought a tooth purported to be from the late rock star.