Dr Karl
Dr Karl on TikTok!
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Triple J Science Questions

Science with Dr Karl
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Next up on the Radio

  • Wednesday 18th March 2026
    9:30 am - 10:00 am

    Dr Karl joins Sarah Cumming on ABC Gold Coast

  • Wednesday 18th March 2026
    7:00 pm - 7:30 pm

    Dr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland

  • Thursday 19th March 2026
    11:00 am - 12:00 pm

    Dr Karl joins Lucy Smith on ABC Triple J Science Mornings

  • Thursday 19th March 2026
    2:00 pm - 2:30 pm

    Dr Karl joins Joel Rheinberger on ABC Hobart


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ABC TV: Anh’s Brush with Fame: Dr Karl Kruszelnicki

Dr Karl has shared his passion for life and science with Australians for decades. He reveals the fascinating life story that led him to broadcasting, as Anh tries to capture his natural curiosity and enthusiasm on canvas.

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Cheek fillers, disappearing allergies and shower stinkies

Why do certain sounds give you goosebumps? Can drinking cows milk cause lots of health problems? Why does your body twitch as you’re falling asleep? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.


Australian Geographic

Arthritic cane toads?

Did you know cane toads in Australia get arthritis and have weaker immune systems? Dr. Karl teaches us more about the toxic toads spreading across the nation. WE ALL KNOW that the introduction to Australia of 102 cane toads in 1935 was not one of our eureka moments, because they became serious pests. The cane […]

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Itchy ankles, swelling cheeks and bellybutton fluff

Why do some people get itchy legs when they exercise? Plus: what causes some people’s cheeks to swell and tingle while eating cheese? And why is bellybutton fluff always blue?