San Francisco 's fickle summer weather has earned it the nickname "Fog City." Science on the SPOT asks UC Berkeley's Todd Dawson to clear up the mysterious origins of this weather phenomenon, and share his research on how fog is integral to our state's ecology.

The Channel Islands, Monterey Bay, Gulf of the Farallones and Cordell Bank National Marine Sanctuaries cover more than 9,500 square miles of ocean habitat. While most fishing and shipping are still allowed within sanctuary waters, some activities are now regulated or prohibited. Patrolling such an immense area by boat would take days... but now sanctuary managers are taking to the air in a rugged de Havilland DHC-6 Twin Otter bush plane to get a bird's eye view.

In our second episode of Science on the SPOT, join us on a behind-the-scenes trip deep into the massive collection of marine mammal skulls at the California Academy of Sciences in San Francisco. You'd be surprised how much you can learn about an animal's life– and death– by reading their bones.

In our first installment of QUEST's new Science on the SPOT web series, we go behind-the-scenes at the Monterey Bay Aquarium, with the intrepid dive team who keep the enormous Outer Bay Exhibit tank spic and span-- while swimming in 40 pounds of stainless steel, shark-resitant armor.