Ancient Algae, COVID Holidays, Accessible Pregnancy Test. Nov 6, 2020, Part 2

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How Algae Survived A Mass Extinction Sixty-six million years ago when an asteroid slammed into what is now the Yucatan peninsula, it set off a period of near global darkness for almost two years. Scientists think a majority of land species went extinct during that time, but what was going on in the planet’s oceans? And how were these ecosystems able to bounce back? In a new paper published in Science Advances, researchers say what saved Earth’s oceans may have been a type of algae that could hunt for food. Ira is joined by one of the paper’s authors, Andrew Ridgwell, a professor of earth system science at the University of California, Riverside, to discuss the little algae that could.…