Dolly and her fibroblast-derived cousins have changed forever the way we think about animal development. Cells in mature animal tissues are not, as we had thought, irreversibly differentiated. Understanding differentiation is the key to understanding development, and Dolly embodies the extraordinary possibility of manipulating the process--of doing experiments to identify the basic construction rules used in putting animals together.
TODAY IN SLATE
Ben Bradlee Dead at 93
The legendary Washington Post editor presided over the paper’s Watergate coverage.
This Scene From All The President’s Men Captures Ben Bradlee’s Genius
Renée Zellweger’s New Face Is Too Real
Sleater-Kinney Was Once America’s Best Rock Band
Can it be again?
Whole Foods Is Desperate for Customers to Feel Warm and Fuzzy Again
I’m 25. I Have $250.03.
My doctors want me to freeze my eggs.
Forget Oculus Rift
This $25 cardboard box turns your phone into an incredibly fun virtual reality experience.