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How life unfolds: a landscape metaphor comes into its own
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How life unfolds: a landscape metaphor comes into its own

So, how do genes guide an embryo as it grows into a body made of many different cell types? Biologist C.H. Waddington imagined cells as a ball rolling through a landscape of branching valleys, with each path leading to a different cell fate. Now, researchers are using data from thousands of cells to map real cell-state landscapes, finding that development is more dynamic than a simple genetic readout. And here's the fascinating part: cells interact not only with one another, but also help shape the landscape that guides their journey.
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