9:30 am - 10:00 am
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Next up on the Radio
Wednesday 4th March 2026
9:30 am - 10:00 amWednesday 4th March 2026
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Thursday 5th March 2026
11:00 am - 12:00 pmDr Karl joins Lucy Smith on ABC Triple J Science Mornings
Thursday 5th March 2026
2:00 pm - 2:30 pmDr Karl joins Joel Rheinberger on ABC Hobart
Latest Books
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Recent Articles & Stories
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Australian Geographic Popular sunscreen chemical can kill baby corals
Consider wearing zinc or covering up next time you’re snorkeling, says Dr Karl – one popular sunscreen chemical can be toxic for baby corals. ON A TRIP TO the Galapagos Islands, our guide asked us not to use sunscreen at one reef. He told us it was very fragile, and quite small, and that the […]
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Frozen wasps, projecting black and foggy windscreens
Why do wasps survive being frozen? If black is a shade of light, then how does a projector recreate it? Why does cold air clear a foggy windscreen better than warm air?
Australian Geographic Why does your dog wag its tail?
Dr Karl uncovers the curious hidden meanings behind your dog’s tail wagging. THE DOG HAS been man’s best friend for thousands of years – so you’d think we’d know how to read its emotions. When the tail is stiff, the ears are tucked in and the body is held tight, most of us recognise it […]
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Green tomatoes, vegans and static shock
How do you get green tomatoes to ripen quickly? Can people on a vegan diet receive the same amount of nutrients as meat-eaters? Can static shocks through headphones be dangerous?
