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roadkill
Roadkill is an animal or animals that have been struck and killed by motor vehicles driven by humans on highways. It is important because of the loss of wild animals, road safety, and the economic impact on both drivers and road management. For this reason it has increasingly become the topic of academic research to understand the causes, and how it can be mitigated. Some roadkill can also be eaten.
==History==
During the early 20th century, roadkill or "flat meats" (or "highway pizza") became a common sight in most industrialized First World nations, as they adopted the internal combustion engine and the automobile. One of the earliest observers of roadkill was the naturalist Joseph Grinnell, who noted in 1920: "This () is a relatively new source of fatality; and if one were to estimate the entire mileage of such roads in the state (), the mortality must mount into the hundreds and perhaps thousands every 24 hours."
In Europe and North America, deer are the animal most likely to cause vehicle damage. In Australia, specific actions taken to protect against the variety of animals that can damage vehicles – such as bullbars (usually known in Australia as 'roo bars', in reference to kangaroos) – indicate the Australian experience has some unique features with road kill.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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