High Quality Content by WIKIPEDIA articles! The Tammar Wallaby (Macropus eugenii), also known as the Dama Wallaby or Darma Wallaby, is a small member of the kangaroo family and is the model species for research on kangaroos and marsupials. It is found on offshore islands on the South Australian and Western Australian coast. It persists in large numbers on Kangaroo Island, where it seasonally breeds in large numbers and can become a problem to farmers through competition for pasture and grain crops. High densities of these animals also have impact on the density of low vegetation across the Island. The Tammar Wallaby was seen on West Wallabi Island in the Houtman Abrolhos off Western Australia by survivors of the 1628 Batavia shipwreck, and recorded by Francisco Pelsart in his 1629 Ongeluckige Voyagie. This represents the first recorded sighting of a macropod by Europeans, and probably also the first sighting of an Australian mammal.