Yosemite National Park is home to hundreds of black bears — no one keeps an accurate count — only some of which seek out human food and garbage. After a record 1,584 bear incidents in 1998, park officials enacted new food storage requirements to stop bears from stealing food and garbage. These measures help prevent bear deaths and human-bear interactions, because a food-reliant bear often becomes an aggressive bear, according to the park. With more than 4 million visitors yearly, Yosemite now spends about $500,000 annually on supplies, outreach and activities meant to prevent bears from getting into human food.