Where Soil Grows Above The Trees
Canopy soil builds up over decades in the nooks and crannies of old trees. How does it get there?
Their findings may allow scientists to study embryonic development more closely and better understand things like miscarriage and genetic diseases.
From land-mine sniffing rats to to the mice in your backyard, biologist Danielle Lee is asking big questions about how ecology shapes behavior.
Jim Metzner, a pioneer of science radio, looks back on his lifetime of recordings, now heading for the Library of Congress.