How has the location of Australia and New Zealand affected the development of their plant and animal life?

Australia and New Zealand's geographic isolation has significantly shaped their plant and animal life. Australia's long separation from other landmasses has led to a high degree of endemism, resulting in unique species like kangaroos and eucalyptus trees. In contrast, New Zealand's isolation has fostered the evolution of distinct flora and fauna, including Flightless Birds like the kiwi. Both countries’ varied climates and ecosystems further contribute to their diverse biological landscapes.