Koalas are widely seen as a species in crisis, yet in South Australia’s Mount Lofty Ranges their numbers have grown so rapidly that they are damaging the forests they depend on. Using citizen-science data and demographic modelling, we project that this population will continue growth without intervention. We show that targeted, non-lethal fertility control of adult females can stabilise populations at lower cost while avoiding ecological damage and animal welfare concerns.

We invite expressions of interest for a postdoc applicant to the National Intelligence Postdoctoral Grant. The project focuses on forecasting scrub typhus risks in Australia using demographic and ecological models of chigger mites and their hosts under climate change. The successful candidate will help shape the research direction. Apply by 6 Jan 2026

Taking a year off after Honours felt risky, but it became one of the most valuable years of my life. I finished my manuscript, gained hands-on marine biology experience: from whale necropsies in New Zealand to tracking humpbacks in Queensland, and confirmed that a PhD is truly the path I want to follow

Our new research shows that “forever chemicals” (PFAS) have reached every corner of the ocean, contaminating a far wider range of whales and dolphins than expected, even deep-diving species far from human activity. Surprisingly, habitat had little influence on exposure while age and sex mattered more. These findings reveal PFAS are deeply embedded in marine food webs, raising urgent concerns for ocean health and the species that depend on it, including us.