National Threatened Species Day (NTSD) is held on 7 September each year - commemorating the death of the last Tasmanian tiger at Hobart Zoo in 1936. The concept was developed in 1996 by the Threatened Species Network, a community based program of the World Wide Fund for Nature and the Commonwealth Government's Natural Heritage Trust, as a way to showcase Australian threatened species. By focusing attention on the plight of many of our threatened animals and plants, NTSD aims to encourage greater community support and hands-on involvement in the prevention of further losses of Australia's unique natural heritage. September is also Biodiversity Month, a time when many Australians celebrate our unique and valuable biodiversity with activities to protect and conserve the environment.

See also State sites for National Threatened Species Week:

• Queensland
• NSW