The Serengeti in Tanzania is home to large populations of wildlife species, including spotted hyenas (Crocuta ocaliz). While many human activities are prohibited in the national park, driving is allowed in and through the protected area. Using a 34-year long-term data set, a scientific team from the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) analyzed which factors contribute significantly to hyenas being run over and killed by vehicles.