John Rodgers

Oct. 23, 2009

Extinctions from Algae?

Many scientists attribute the world's great extinction events to major catastrophes such as asteroid strikes and massive volcanic eruptions. We'll talk with researchers exploring an alternate theory -- that massive algal blooms led to mass extinctions.

extinction, algae, asteroid, dinosaur

AVAILABLE IN ITUNES

Michael Pollan Talks Plants and Food

view more

FEATURED PLAYLIST

Happy National Moth Week!

BOOKS BY OUR GUESTS

Mystery Box

The Myth of the Woolly Bear

\tLegend holds that the length of a woolly bear caterpillar’s color bands can be used to forecast how severe the winter weather will be. The myth dates back to colonial American folklore but was popularized by a 1948 study. SciFri finds out if there’s any truth to the lore, and what the caterpillar’s fuzzy bristles are really used for.

Science Friday® is produced by the Science Friday Initiative, a 501(c)(3) nonprofit organization.

Science Friday® and SciFri® are registered service marks of Science Friday, Inc. Site design by Pentagram; engineering by Mediapolis.

 

topics