The expert’s hack on how to put a bull shark to sleep
A Griffith University researcher says flipping bull sharks upside down induces a sleep-like state, allowing safe handling for study. Taryn-Lee Perrior used this method on over 200 sharks across southeast Queensland rivers and Moreton Bay, collecting blood samples to assess toxin exposure. The toxicology research examines how juvenile bull sharks are affected by environmental contaminants, with results expected by year-end.
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Published 18 Jul 2026, 19:00 UTC · Updated 18 Jul 2026, 19:11 UTC
Summary by OZbrief Editorial. Original report: SMH. Editorial policy · Corrections