Karl's Schedule

Events in November 2026

Recent Articles

Find Karl on Instagram

Need to know: Bird poo hue

Chewing, soy, protein

You can catch Karl all over the airways, radio and television as well as some special events. View the calendar below to see when and where you can catch him next. Please note all times are the local station broadcast times. To check the time in your area, please go here.

Monday 6th June 1:34 pm

Why is most bird poo white, even though birds eat food of many different colours? The answer has two parts. One is that birds have to get rid of excess nitrogen in their diet. The other is that bird poo does actually come in different colours. Nitrogen is an element in all proteins. Sometimes there […]

Thursday 9th July 12:00 pm

Could you last on a deserted island, Tom Hanks style? Are bananas actually healthy? Is my vegetarian diet affecting my PCOS? Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith and Professor Clare Collins from the University of Newcastle

View all

4 Dr Karl joins Sarah Cumming on ABC Gold Coast 9:30 am – 10:00 am Wednesday 4th November 2026 9:30 am - 10:00 am Local time in Queensland, Dr Karl joins Susan Graham-Ryan on ABC Townsville 10:30 am – 11:00 am Wednesday 4th November 2026 10:30 am - 11:00 am Local time in Queensland, Dr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland 7:00 pm – 7:30 pm Wednesday 4th November 2026 7:00 pm - 7:30 pm Local time in Queensland

5 Dr Karl joins Rory McClaren on ABC Adelaide 9:30 am – 10:00 am Thursday 5th November 2026 9:30 am - 10:00 am Local time in Adelaide, Dr Karl joins Lucy Smith on ABC Triple J Science Mornings 11:00 am – 12:00 pm Thursday 5th November 2026 11:00 am - 12:00 pm Local time in NSW, Dr Karl joins Alice Matthews on ABC Canberra 2:30 pm – 3:00 pm Thursday 5th November 2026 2:30 pm - 3:00 pm Local time in ACT, Dr Karl joins Jess Ong on ABC Darwin 2:30 pm – 3:00 pm Thursday 5th November 2026 2:30 pm - 3:00 pm Local time in NT, Dr Karl joins Prue Bentley on ABC Regional Victoria 3:30 pm – 4:00 pm Thursday 5th November 2026 3:30 pm - 4:00 pm Local time in Victoria, Dr Karl joins Ali Moore on ABC Melbourne 4:30 pm – 5:00 pm Thursday 5th November 2026 4:30 pm - 5:00 pm Local time in Victoria

11 Dr Karl joins Sarah Cumming on ABC Gold Coast 9:30 am – 10:00 am Wednesday 11th November 2026 9:30 am - 10:00 am Local time in Queensland, Dr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland 7:00 pm – 7:30 pm Wednesday 11th November 2026 7:00 pm - 7:30 pm Local time in Queensland

12 Dr Karl joins Lucy Smith on ABC Triple J Science Mornings 11:00 am – 12:00 pm Thursday 12th November 2026 11:00 am - 12:00 pm Local time in NSW, Dr Karl joins Joel Rheinberger on ABC Hobart 2:00 pm – 2:30 pm Thursday 12th November 2026 2:00 pm - 2:30 pm Local time in Tasmania, Dr Karl joins Alice Matthews on ABC Canberra 2:30 pm – 3:00 pm Thursday 12th November 2026 2:30 pm - 3:00 pm Local time in ACT, Dr Karl joins Jess Ong on ABC Darwin 2:30 pm – 3:00 pm Thursday 12th November 2026 2:30 pm - 3:00 pm Local time in NT, Dr Karl joins Prue Bentley on ABC Regional Victoria 3:30 pm – 4:00 pm Thursday 12th November 2026 3:30 pm - 4:00 pm Local time in Victoria

18 Dr Karl joins Sarah Cumming on ABC Gold Coast 9:30 am – 10:00 am Wednesday 18th November 2026 9:30 am - 10:00 am Local time in Queensland, Dr Karl joins Susan Graham-Ryan on ABC Townsville 10:30 am – 11:00 am Wednesday 18th November 2026 10:30 am - 11:00 am Local time in Queensland, Dr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland 7:00 pm – 7:30 pm Wednesday 18th November 2026 7:00 pm - 7:30 pm Local time in Queensland

19 Dr Karl joins Rory McClaren on ABC Adelaide 9:30 am – 10:00 am Thursday 19th November 2026 9:30 am - 10:00 am Local time in Adelaide, Dr Karl joins Lucy Smith on ABC Triple J Science Mornings 11:00 am – 12:00 pm Thursday 19th November 2026 11:00 am - 12:00 pm Local time in NSW, Dr Karl joins Alice Matthews on ABC Canberra 2:30 pm – 3:00 pm Thursday 19th November 2026 2:30 pm - 3:00 pm Local time in ACT, Dr Karl joins Jess Ong on ABC Darwin 2:30 pm – 3:00 pm Thursday 19th November 2026 2:30 pm - 3:00 pm Local time in NT, Dr Karl joins Prue Bentley on ABC Regional Victoria 3:30 pm – 4:00 pm Thursday 19th November 2026 3:30 pm - 4:00 pm Local time in Victoria

25 Dr Karl joins Sarah Cumming on ABC Gold Coast 9:30 am – 10:00 am Wednesday 25th November 2026 9:30 am - 10:00 am Local time in Queensland, Dr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland 7:00 pm – 7:30 pm Wednesday 25th November 2026 7:00 pm - 7:30 pm Local time in Queensland

26 Dr Karl joins Lucy Smith on ABC Triple J Science Mornings 11:00 am – 12:00 pm Thursday 26th November 2026 11:00 am - 12:00 pm Local time in NSW, Dr Karl joins Joel Rheinberger on ABC Hobart 2:00 pm – 2:30 pm Thursday 26th November 2026 2:00 pm - 2:30 pm Local time in Tasmania, Dr Karl joins Alice Matthews on ABC Canberra 2:30 pm – 3:00 pm Thursday 26th November 2026 2:30 pm - 3:00 pm Local time in ACT, Dr Karl joins Jess Ong on ABC Darwin 2:30 pm – 3:00 pm Thursday 26th November 2026 2:30 pm - 3:00 pm Local time in NT, Dr Karl joins Prue Bentley on ABC Regional Victoria 3:30 pm – 4:00 pm Thursday 26th November 2026 3:30 pm - 4:00 pm Local time in Victoria

Catch me & a stellar line-up of scientists and com

Do bees have knees? The answer is a mix of Entomol

How often are you washing your sheets? Science say

March 2, 2023, Sydney WorldPride, @dralicemotion T

Instagram post 17873725064836192

Lucy Smith and I after the Triple J show today

Instagram post 17952747620428118

The average person farts about 1.5 litres/day. How

Come and join me for 'Great Moments in Dog Science

RESCHEDULE: Presenting a jam-packed hour of amazin