Dingoes generally avoid conflict with humans, but they are large enough to be dangerous. Most attacks involve people feeding wild dingoes, particularly on Fraser Island, which is a special centre of dingo-related tourism. The vast majority of dingo attacks are minor in nature, but some can be major, and a few have been fatal: the death of 2-month-old Azaria Chamberlain in the Northern Territory in 1980 is one of them. Many Australian national parks have signs advising visitors not to feed wildlife, partly because this practice is not healthy for the animals, and partly because it may encourage undesirable behaviour, such as snatching or biting by dingoes, kangaroos, goannas, and some birds.