Dr Karl
Dr Karl on TikTok!
View all

Triple J Science with Dr Karl

Triple J Science with Dr Karl
View all

Next up on the Radio

  • Wednesday 28th October 2026
    9:30 am - 10:00 am

    Dr Karl joins Sarah Cumming on ABC Gold Coast

  • Wednesday 28th October 2026
    7:00 pm - 7:30 pm

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

  • Thursday 29th October 2026
    11:00 am - 12:00 pm

    Dr Karl joins Lucy Smith on ABC Triple J Science Mornings

  • Thursday 29th October 2026
    2:00 pm - 2:30 pm

    Dr Karl joins Joel Rheinberger on ABC Hobart


Latest Books

View all

Recent Articles & Stories

View all
Uncategorized

Cement nails, beached whales and red hair changing colour

Does cement make your nails grow? Are the hiccups hereditary? Why is the sound of a plane flying so loud when you’re outside it, but quiet when you’re inside it? Dr Karl answers these questions and more, with host Linda Marigliano on triple j Mornings.

Uncategorized

Asapargus wee, sweating underwater and an infinite cycle of yawning

Can we outgrow our allergies? Is it possible to tell if we’re sweating underwater? Why does our stomach look much smaller when we wake up in the morning?


National Geographic Kids

A Wee Fact About Asparagus

Asparagus and Wee with Dr Karl Like many people, I love eating asparagus! But there can be a funny side effect… When some of us eat asparagus, shortly afterwards our wee smells strange – a bit like rotten or boiled cabbage. But not all of us can make this stinky wee… and here’s something else […]

Uncategorized

Beard hairballs, purring pussies and green boogers

Do bees know they’ll die if they sting someone? Why do I feel hungry after eating fruit? What material makes the best reusable coffee cup?