Researchers edited macaque embryos to induce symptoms of sleep disorders and chose one animal to clone. A bioethicist questions the study’s appropriateness.

The approach, which has never before been successfully attempted in primates, could lead to improved animal models for human biology and disease.

For nearly 30 years, the UC San Francisco researcher has delved into unexplored corners of the nervous system.

A new analysis of Dolly’s skeleton suggests the cloned sheep’s arthritis did not lead to her death. 

More lessons from Dolly the sheep

Harvard biologist George Church talks gene therapy, aging, and reviving the woolly mammoth with Stephen Colbert.

The animals, some of which were cloned from the same tissue as Dolly, appeared as healthy as non-cloned sheep, a study suggests.

How to Clone a Mammoth, The Upright Thinkers, The Thirteenth Step, and Humankind

A toothpick and a bit of chance shaped David Page’s career, which he has dedicated to understanding the mammalian Y chromosome and fetal germ cell development.