Rhedyn completed her Bachelor of Science in zoology and honours in biological anthropology at the ANU in 2007. Her honours thesis looked at how to maximise naturalistic captive gorilla behaviour through exhibit design.
Since graduating, Rhedyn has worked as a zoologist with the Commonwealth Department of the Environment (under its many and ever changing names). Rhedyn’s focus is on international wildlife trade, particularly import and export of live animals for zoos, and on international wildlife conservation policy as part of Australia’s responsibilities as a party to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). Rhedyn represented Australia at the 17th Conference of the Parties to CITES in Johannesburg, South Africa, in 2016.