* Scoop a handful of critters out of the San Francisco Bay and you'll find tourists from far away shores. Invasive kinds of mussels, fish and more are choking out native species, challenging experts around the State to change the human behavior that brings them here. * California's landmark stem cell research program made headlines nationally, but what's the latest story behind the science? Quest investigates the potential for medical breakthroughs in the next decade and how the Bay Area is leading the way. * The land near the old Sutro Baths in San Francisco is getting a multi-million dollar face lift. Discover how this rich historical area not far from the Golden Gate Bridge will get new trails, catwalks and more.