Skip to main content
image of Dr Karl wearing a brightly coloured blue shirt on an yellow patterned background

Program: Disappearing poos, capsaicin receptors and cane toads

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume.

What muscles are required for a yawn? How does jewellery affect our skin? And what's the connection between atoms and physical pain?

Producers: Mateo Baskaran, Ella Carter

Science with Dr Karl is an ABC podcast, produced by triple j. It is recorded on Gadigal Land. We pay our respects to elders past and present. We acknowledge Aboriginal and Torres Strait Islander peoples as the First Australians and as the original and continuing innovators of science, technology, engineering and mathematics on the land we live, work and learn.

Science and Technology