It's something of a slaughterhouse for wildlife on roads in and around Saguaro National Park.
Officials of the park located in southern Arizona say research indicates that vehicles hit and kill at least 30,000 animals annually.
The Arizona Daily Star say road kill victims include mountain lions, bobcats, deer, coyotes, birds, lizards, toads and snakes.
Park biologist Natasha Kline says the dozens of miles of roads through and around the park's sections east and west of Tucson are a major factor.
Many of those roads are open 24 hours a day though the eight-mile scenic-drive loop in the park's eastern unit is closed at night.
Steps that could reduce the carnage include closing roads and using structures and other means to slow traffic and keep wildlife from crossing roads.
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