NPR Story
6:02 pm
Fri March 29, 2013

Segment 1

Originally published on Sat March 30, 2013 6:26 am

The Sonoran Desert, which spans some 100,000 square miles in southwestern North America, is one of the most diverse desert ecosystems in the world. Host Ira Flatow and guests discuss some lesser known desert creatures, and explore the secret life of that American southwest icon, the saguaro cactus.