Opposite-sex partners: can't live with 'em, can't evolve without 'em
Embryologist Irina Polejaeva talks about the successes and challenges of cloning performance horses
In the movies, doubles are sinister or idiotic. Now we've got real-life test cases: genetically engineered cats
Biologists have developed a new cloning technique that lets them create new clones indefinitely, and keeps the animals' normal lifespans, too.
Scientists in Japan have been able, for the first time, to successfully clone a mouse from a blood sample drawn from a living donor's tail.
In this corner: Gregory Stock, director of the program on Medicine, Technology and Society at UCLA. and in this corner: Panos Zavos, professor emeritus of reproductive physiology at the University of Kentucky.
Conversations: Killer clone armies, government censorship and making babies.
Cloned ponies (clonies?) are beginning to prove themselves in the field.
Cellphones, microchips, cars, even iPhones—there's virtually no high-tech Western product that China's cloners can't copy. Pretty soon, you might even prefer their work
Vets hope little Got is as tough a fighter as his father the source of his genetic material was
The process that created Dolly the sheep in 1996 has now been proven successful in humans.
Ten years ago, South Korean geneticist Woo Suk Hwang was caught making up data about cloning human stem cells.
In this corner: Robert Lanza, vice president of medical and scientific development, Advanced Cell Technology (ACT). And in this corner: Kent Redford, director, Wildlife Conservation Society Institute.
It's just like Jurassic Park, except for real, and also with several key practical differences!
Irina Polejaeva has the secret to the perfect steak, but is America ready for her recipe?
Pigs are offering new possibilities for studying Alzheimer's disease
The last bucardo died in 2000, killed by a falling tree.
Mouse milk (for people), spider-goats, pain-free cattle, and nine more
Exotic science explained for the everyman
Lots of animals reproduce asexually. Why not humans?