Is Climate Change Leading To Super Marmots?
A new study published this week in the journal <em>Nature</em> says yellow-bellied marmots in Colorado are getting bigger in size and population. Climate change may be the reason. Robert Siegel talks to UCLA marmot scientist Dan Blumstein.
NPR's Michel Martin discusses coronavirus mutations with physician Matt McCarthy, author of <em>Superbugs: The Race to Stop an Epidemic</em>.