175 | William Ratcliff on Multicellularity, Physics, and Evolution

175 | William Ratcliff on Multicellularity, Physics, and Evolution

We've talked about the very origin of life, but certain transitions along its subsequent history were incredibly important. Perhaps none more so than the transition from unicellular to multicellular organisms, which made possible an incredible diversity of organisms and structures. Will Ratcliff studies the physics that constrains multicellular structures, examines the minute changes in certain yeast cells that allows them to become multicellular, and does long-term evolution experiments in which multicellularity spontaneously evolves and grows. We can't yet create life from non-life, but we can reproduce critical evolutionary steps in the lab.

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William Ratcliff received his Ph.D. in Ecology, Evolution, and Behavior at the University of Minnesota. He is currently Associate Professor in the School of Biological Sciences at Georgia Tech. Among his awards are a Packard Fellowship and being named in Popular Science's "Brilliant 10" of 2016.


Jaksot(424)

23 | Lisa Aziz-Zadeh on Embodied Cognition, Mirror Neurons, and Empathy

23 | Lisa Aziz-Zadeh on Embodied Cognition, Mirror Neurons, and Empathy

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19 Marras 20181h 7min

22 | Joe Walston on Conservation, Urbanization, and the Way We Live on Earth

22 | Joe Walston on Conservation, Urbanization, and the Way We Live on Earth

There's no question that human activity is causing enormous changes on our planet's environment, from deforestation to mass extinction to climate change. But perhaps there is a tiny cause for optimism...

12 Marras 20181h 28min

21 | Alex Rosenberg on Naturalism, History, and Theory of Mind

21 | Alex Rosenberg on Naturalism, History, and Theory of Mind

We humans love to tell ourselves stories about why things happened the way they did; if the stories are sufficiently serious, we label this activity "history." Part of getting history right is simply ...

5 Marras 20181h 20min

20 | Scott Derrickson on Cinema, Blockbusters, Horror, and Mystery

20 | Scott Derrickson on Cinema, Blockbusters, Horror, and Mystery

Special Halloween edition? Scott Derrickson is a film-lover first and a director second, but he's been quite successful at the latter -- you may know him as the director and co-writer of Marvel's Doct...

29 Loka 20181h 23min

19 | Tyler Cowen on Maximizing Growth and Thinking for the Future

19 | Tyler Cowen on Maximizing Growth and Thinking for the Future

Economics, like other sciences (social and otherwise), is about what the world does; but it's natural for economists to occasionally wander out into the question of what we should do as we live in the...

22 Loka 201859min

18 | Clifford Johnson on What's So Great About Superstring Theory

18 | Clifford Johnson on What's So Great About Superstring Theory

String theory is a speculative and highly technical proposal for uniting the known forces of nature, including gravity, under a single quantum-mechanical framework. This doesn't seem like a recipe for...

15 Loka 20181h 12min

17 | Annalee Newitz on Science, Fiction, Economics, and Neurosis

17 | Annalee Newitz on Science, Fiction, Economics, and Neurosis

The job of science fiction isn't to predict the future; it's to tell interesting stories in an imaginative setting, exploring the implications of different ways the world could be different from our a...

8 Loka 20181h 11min

16 | Coleen Murphy on Aging, Biology, and the Future

16 | Coleen Murphy on Aging, Biology, and the Future

Aging -- everybody does it, very few people actually do something about it. Coleen Murphy is an exception. In her laboratory at Princeton, she and her team study aging in the famous C. Elegans roundwo...

1 Loka 20181h 4min

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