Australian conservationists

Stephen Robert Irwin was an Australian conservationist, environmentalist, zookeeper, television personality, and wildlife educator. Nicknamed the "Crocodile Hunter", he is regarded as an influential figure in Australian popular culture, and as one of the greatest conservationists of all time.

Australian writer and public intellectual (born 1939)

Bindi Sue Irwin is an Australian conservationist, zookeeper, television personality, and actress. The daughter of conservationists Steve and Terri Irwin, she serves as the chief executive officer of Australia Zoo in Beerwah, Queensland.

Australian Greens politician, medical doctor, environmentalist

American-Australian zoologist, conservationist and television host

Australian botanist, conservationist and herbarium curator (1912–1977)

Robert Clarence Irwin is an Australian conservationist, zookeeper, wildlife photographer, and television presenter. The son of conservationists Steve and Terri Irwin, he manages Australia Zoo in Beerwah, Queensland, and is frequently involved in activities that his father originally participated in.

Australian arachnologist (1929-2019)

Australian writer

Australian lawyer, explorer and conservationist (1900-1979)

Australian/Venezuelan conservationist, explorer, scientific collector and illustrator (1908–2001)

Australian botanist (1924–2021)

Australian botanist

Australian marine biologist (1877-1957)

Australian film maker

Australian television personality

Australian botanist

Australian paleobotanist and author (1926-2018)

Hungarian–Australian entomologist (1924-2014)

Naturalist and journalist (1900-1958)