Dr Karl
Dr Karl on TikTok!
View all

Triple J Science Questions

Science with Dr Karl
View all

Next up on the Radio

  • Wednesday 11th March 2026
    9:30 am - 10:00 am

    Dr Karl joins Sarah Cumming on ABC Gold Coast

  • Wednesday 11th March 2026
    10:30 am - 11:00 am

    Dr Karl joins Susan Graham-Ryan on ABC Townsville

  • Wednesday 11th March 2026
    7:00 pm - 7:30 pm

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

  • Thursday 12th March 2026
    9:30 am - 10:00 am

    Dr Karl joins Rory McClaren on ABC Adelaide


Latest Books

View all

Recent Articles & Stories

View all
Uncategorized

Hot and cold breath, tilting dog heads and an infuriating itch

Why shouldn’t we eat our own poo? Why do bruises change colour? And the lady who literally picked her brain

Australian Geographic

Australian breakthroughs: dark energy

Dr Karl outlines what we do and don’t know about the mysteriously named dark energy, which makes up around 70 per cent of the entire universe. THE LATEST AUSTRALIAN discovery that impresses the heck out of me is really, really weird. We can’t see it or touch it – and yet, it makes up about […]


Uncategorized

Clean scars, ear plugs and sobering exercise

Why don’t scars get dirty the same way as the rest of your skin? Do noise-reducing ear plugs damage your ears if you wear them for too long? Can exercising after drinking alcohol help you sober up more quickly?

Uncategorized

Clitoris, mosquitos, genetics

How much information can your brain hold? How do genetics work and does the clitoris have multiple purposes?