Wallace Line to the west of the Philippines. Wallace's studies in Indonesia demonstrated the emerging theory of evolution, at about the same time as Joseph Dalton Hooker and Asa Gray published essays also supporting Darwin's hypothesis. Understanding of the biogeography of the region centers on the relationship of ancient sea levels to the continental shelves. Wallace's Line is visible geographically when the continental shelf contours are examined; it can be seen as a deep-water channel that marks the southeastern edge of the Sunda Shelf which links Borneo, Bali, Java, and Sumatra underwater to the mainland of southeastern Asia. Australia is likewise connected
Peter Wallace Wallace was selected for the City vs Country Origin match in 2008. In May, 2008, Wallace was selected as halfback for New South Wales for game I of State of Origin on 21 May at ANZ Stadium. With his first touch of the ball, he made a line break. He also had a hand in two tries and placed a pin point accurate kick for Anthony Quinn to score the second try of the night. He made only one error and took many hits from Queensland players, making 29 tackles. Wallace was selected for the Blues again in Game II