(Left) A close-up view of a spirally fractured mastodon femur. (Right) A boulder discovered at the Cerutti Mastodon site in San Diego County thought to have been used by early humans as a hammerstone. Tom Démeré/San Diego Natural History Museum hide caption
Winter rains have eased the drought in the Santa Monica Mountains National Recreation Area northwest of Los Angeles. Kirk Siegler/NPR hide caption
The levees below the Oroville Dam were damaged by heavy floodwaters this winter and many need repairs. Lauren Sommer/KQED hide caption
David Robert Daleiden (right) leaves a courtroom after a hearing in Houston. California prosecutors say two anti-abortion rights activists who made undercover videos of themselves trying to buy fetal tissue from Planned Parenthood have been charged with 15 felony counts of invasion of privacy. State Attorney General Xavier Becerra announced the charges Tuesday. Pat Sullivan/AP hide caption
California is looking into ways to reduce the use of gas-powered lawn and gardening equipment because they will soon surpass cars as the biggest polluters in the state. stoncelli/Getty Images/iStockphoto hide caption
One of two homes that suffered catastrophic damage from a plane crash Monday is seen in this image released by the city of Riverside, Calif. City of Riverside, Calif. hide caption
Almost 200,000 people were ordered to evacuate after a hole in the emergency spillway in Northern California's Oroville Dam threatened to flood the surrounding area. Climate change could be a factor of extreme flooding in California. Elijah Nouvelage/Getty Images hide caption
Dr. C. David Molina reviewing medical records in the 1980s. He was a doctor first, then a health insurer. Courtesy of Molina Healthcare hide caption
Some environmental justice advocates say California's cap-and-trade program hasn't done anything to clean up the air in low-income communities like Wilmington, where refineries are located near residential neighborhoods. Maya Sugarman/KPCC hide caption
Rescuers sometimes chest-deep in water steered boats carrying dozens of people, including babies and pets, from a San Jose neighborhood inundated by water from an overflowing creek. Marcio Jose Sanchez/AP hide caption
Driscoll's, the largest berry producer in the world, now grows about the same quantity of raspberries and strawberries in Mexico as it does in California. Many American producers have recently expanded their production to Mexico. Mike Mozart/Flickr hide caption
The Oroville Dam's main spillway as seen on Feb. 14. Crews working round the clock since Sunday have made progress stabilizing this and another spillway damaged by water. Marcio Jose Sanchez/AP hide caption
Coeur d'Alene is the largest city and county seat of Kootenai County, Idaho. North Idaho counties like Kootenai have seen their population double since the 1990s. Karen Ybanez/Flickr hide caption
An aerial photo released Saturday by the California Department of Water Resources shows the damaged spillway with eroded hillside in Oroville, Calif. William Croyle/California Department of Water Resources via AP hide caption