California, an Ecological Island

Examine the coasts, shrublands, deserts and mountains of San Diego county. More

California is by far our most diverse state. It's a hotbed for diversity and relicts from the past. How do you generate such diversity, how has it been maintained and what can we learn from California's geologic history? Join Patrick for a look at the coasts, scrublands, deserts and mountains of San Diego County.

AIR DATE 4/6/13