Patrick McMillan stands in a grass field alongside a river. | From "Expeditions with Patrick McMillan"

California, An Ecological Island

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.

Get the free PBS App

Full Episodes

Upcoming Airdates

There are no airdates scheduled at this time. Visit our Shows page to discover other programs you may enjoy.