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Science with Dr Karl
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Next up on the Radio

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

    Dr Karl joins Sarah Cumming on ABC Gold Coast

  • Wednesday 28th January 2026
    10:30 am - 11:00 am

    Dr Karl joins Susan Graham-Ryan on ABC Townsville

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

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

  • Thursday 29th January 2026
    9:30 am - 10:00 am

    Dr Karl joins Rory McClaren on ABC Adelaide


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National Geographic Kids

How Do Birds Flock?

We still don’t understand how birds fly in flocks and make patterns that look so obviously organised.  After all, they don’t get together beforehand to agree on a series of manoeuvres once they reach altitude!   Nevertheless, this collective behaviour emerges from the combined actions of thousands of independent creatures. How? The birds follow three simple […]

National Geographic Kids

The Pillars of Creation

The Eagle Nebula is a stellar nursery: a place where new stars are born. It’s about 7,000 light years away from Earth (for comparison, the nearest star to our sun is about four light years away). The Eagle Nebula contains three enormous pillars (a few light years high), growing like stalagmites from the floor of […]


Uncategorized

Sex, multiple orgasms and curing a morning glory

As part of triplej’s ‘sex week’, Dr Karl and Zan Rowe take talkback questions ranging from female ‘squirting’ to male morning glories and having sex during pregnancy.

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 […]