A koala, an arboreal Australian marsupial, clings to a tree on the grounds of Parliament House on the National Threatened Species Day in Canberra, Australia, Tuesday Sept. 7, 2010. The National Threatened Species Day commemorates the day the last known Tasmanian tiger died in 1936, urging the people to conserve other threatened unique species in the country. (AP Photo/Mark Graham)
Australian Environment Minister Tony Burke said on Apr. 30 the most at-risk koalas needed to be on the national list of threatened species, and populations in New South Wales, Queensland and the Australian Capital Territory would be listed as vulnerable.
