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thumb Dingo attacks on humans are rare but are known to happen. Dingoes are a danger to livestock, especially sheep and young cattle. The 5,614 kilometer Dingo Fence was constructed in Southeast Australia to protect the livestock there from attacks. Wild dogs are fairly large predators, but are much smaller than able-bodied adults and therefore not generally much of a threat to them. However, they can be a serious threat to incapacitated, isolated, outnumbered, or very small humans, especially infants and young children. Humans and dingoes generally tend to avoid each other. In some situations, however, such as on Fraser Island and some locations in the Northern Territory, close interaction between dingoes and humans, especially feeding dingoes, has led to dangerous habituation and attacks. Dingo attacks on livestock, however, are fairly common occurrences and a serious concern for the Australian livestock industry. ==Cause== The likelihood of wild dog attacks on humans depends to a large degree on how humans behave toward them. The more frequently these dogs are fed or scavenge human leftovers, the more likely it is that they lose all caution and sometimes react aggressively towards humans when they perceive themselves to be in conflict with the human over food. During a study on Fraser Island dingoes, the researchers reasoned that the presence of humans influences the activity of dingoes. The tourism industry on the island encouraged people to approach dingoes without caution, and such encounters were practically expected by the tourists. People lost their caution when dealing with dingoes more and more frequently, and the number of reported interactions increased. The way the dingoes reacted towards humans was dependent on the way humans behaved toward them. Dingoes tended to show aggressive behaviour when humans fled, and tended to be intimidated when humans consciously or aggressively moved towards them. Humans making submissive postures seemed to cause a neutral or submissive reaction of the dingoes. That dingoes showed aggressive behaviour towards humans seemed to be similarly likely during different times of the year. However, adult dingoes might be more dangerous during the breeding season, and female dingoes especially when they raise their pups. Even when habituation to humans seems to be the cause for attacks, it is not clear what the ultimate cause for attacks and overall threat towards humans is. It is possible that some attacks result from the "play" of young pups, especially with children. Attacks can also be caused by false reactions of humans to aggressive and dominance behaviour of dingoes. It is assumed that dingoes might have started to regard "human" food sources (garbage cans, leftovers, handouts, etc.) as part of their territory and that attacks on humans can therefore occur because the dingoes see humans as competitors and want to protect their food sources. That some dingoes might regard humans as prey was also deemed possible because humans, especially children, could be theoretically overpowered. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dingo attack」の詳細全文を読む スポンサード リンク
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