Life on the Edge:
Ingenious Survival Strategies in
the Sonoran and Mojave Deserts

with Therese Markow

(58 minutes; 3/18/2009)
The giant columnar cacti of the North American deserts serve as the homes for dozens of species of insects who depend upon these plants for their survival. UCSD's Therese Markow explores how they survive and what we learn from them.


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