Scientists in California are turning to big data to help save the red-legged frog, which is listed as threatened under the Endangered Species Act. Gary Kittleson hide caption
California
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Thursday
The cracked-dry bed of the Almaden Reservoir in San Jose, Calif., in 2014. Marcio Jose Sanchez/AP hide caption
Tuesday
A worker removes oil at California's Refugio State Beach on May 21, 2015. Jae C. Hong/AP hide caption
Sunday
CSin3 students will wear this green sash when they graduate from Cal State Monterey Bay on Saturday. Krista Almanzan/KAZU hide caption
'Embodiment Of Grit': How Children Of Farm Workers Became Tech Professionals
Thursday
California is the second state to raise the legal age for purchasing tobacco products from 18 to 21. A similar law went into effect in Hawaii on Jan. 1. Paul J. Richards/AFP/Getty Images hide caption
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A Donald Trump supporter and critics of the presidential candidate yell at each other outside a rally for the Republican in Costa Mesa, Calif., on Thursday. Chris Carlson/AP hide caption
Thursday
When Amanda Lipp had an episode of psychosis, her mom, Pam, struggled to find an open bed in a California hospital. Heidi de Marco/Kaiser Health News hide caption
Sunday
Considered Southern California's premier big-wave surf spot, waves at Lunada Bay can reach up to 20 feet overhead in the winter months. Denise Guerra/NPR hide caption
Lunada Bay Visitors Want Locals To Let Them Ride The Waves
Wednesday
Fewer than half of the low-income children eligible for dental care in California actually get checkups or other treatment. iStockphoto hide caption
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Friday
Despite the ongoing drought in California, the Folsom Lake reservoir is kept at only 60 percent capacity in the winter to prevent major flooding if a winter storm occurs. Some hope to prevent the waste of water by relying on more accurate weather predictions. U.S. Bureau of Reclamation hide caption
In California, Dealing With A Drought And Preparing For A Flood
"We are now shifting our attention to changing the underlying delivery system to make it more cost effective and higher quality," says Peter Lee, executive director for Covered California, the state's health insurance marketplace. Anne Cusack/LA Times via Getty Images hide caption
Thursday
A smoker in San Francisco holds a cigarette. If Gov. Jerry Brown signs the bill, California will become the second state to raise the age limit for buying tobacco products from 18 to 21. Justin Sullivan/Getty Images hide caption
Tuesday
A member of the media tests a Tesla Motors Model S car with an Autopilot system. Regulators and manufacturers are debating whether self-driving cars should have a licensed driver inside as a safety precaution. Bloomberg/Bloomberg via Getty Images hide caption