The future of lipids in evolution

Microbes are awesome, says biologist Paula Welander. They have shaped Earth’s chemistry and its environment over billions of years, including oxygenating the planet to make it habitable for larger life forms. In turn, microbes have been shaped by that very same environment, evolving as the climate has evolved, she says. Welander now studies the lipid membranes of ancient microbes, which can endure for millions of years, to understand this evolution and where we might be headed in the future. Microbes are our connection to the ancient world, Welander tells host Russ Altman on this episode of Stanford Engineering’s Th...