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A dozen whales, different species and ages, have washed up recently on nearly 300 miles of Northern California coastline. While this is not a record, it's still alarming. Why is it happening? Bay Area scientists are considering factors such as environmental changes, food distribution, shipping, ocean currents, and predator behavior. Meet staff from the California Academy of Sciences, Mission Science Workshop, and the Exploratorium, and explore evidence leading to and hypotheses about these tragic events. Catch one of the After Dark: Sexplorations highlights from February 6, 2014! Watch as Exploratorium Biologists, Karli Woodward and Caitlin Johnson demonstrate a live sea urchin fertilization.