A leading geneticist explores the "brave new world" of baby-making in an age that looks onward from IVF and surrogacy to human clones and genetic engineering. L

Could a child have two genetic mothers? Will parents someday soon be able to choose not only the physical characteristics of their children-to-be, but their per

In 1345, when Petrarch recovered a lost collection of letters from Cicero to his best friend Atticus, he discovered an intimate Cicero, a man very different fro

Stem cell research, genetically modified crops, animals developed with personalized human organs for transplantation, and other previously inconceivable biotech

Could a child have two genetic mothers? Will parents someday soon be able to choose not only the physical characteristics of their children-to-be, but their per