A Pacific storm swept across Southland mountains and desert areas Thursday (15 oct 2015) afternoon, unleashing intense showers that sent flows of mud and debris into homes and vehicles while cutting off the main artery between Los Angeles and the Central Valley.
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![Scientists discover 36-million-year geological cycle that drives biodiversity Mesozoic mural depicting different ocean species that have evolved through time. [Credit: Smithsonian Institution]](https://www.geologypage.com/wp-content/uploads/2023/08/Scientists-discover-36-million-year-geological-cycle-that-drives-biodiversity-GeologyPage-218x150.jpg)

