An Australian wild dog, the dingo was apparently introduced from Asia 5,000–8,000 years ago. It has short, soft fur, a bushy tail, and erect, pointed ears. It is about 4 ft (1.2 m) long, including the 12-in (30-cm) tail, and stands about 24 in (60 cm) high. Its color varies between yellowish and reddish brown, often with white underparts, feet, and tail tip. Dingoes hunt alone or in small groups. They formerly preyed on kangaroos, but now feed mainly on rabbits and sometimes on livestock. Through competition for resources, they contributed to the extermination of the Tasmanian wolf and Tasmanian devil on the Australian mainland.