Koalas, an iconic symbol of Australia, face extinction as rapid urbanization along the eastern seaboard destroys their fragile habitats, environmental activists have warned.

• 环保主义者提出警告,东海岸的迅速城市化破坏了树袋熊脆弱的栖息环境,树袋熊--澳大利亚的象征--濒临灭绝。