Next up on the Radio

• Wednesday 1st May 2024
  9:30 am - 10:00 am
  

  Dr Karl joins Matt Webber on ABC Gold Coast

• Wednesday 1st May 2024
  10:30 am - 11:00 am
  

  Dr Karl joins Susan Graham-Ryan on ABC Townsville

• Thursday 2nd May 2024
  9:30 am - 10:00 am
  

  Dr Karl joins Rebecca Levingstone on ABC Brisbane

• Thursday 2nd May 2024
  11:00 am - 12:00 pm
  

  Dr Karl joins Lucy Smith on ABC Triple J Science Mornings

Beetroot wee and spag bol stains

What is it with red food and stains? So many things!

Headphone earwax, poisonous spiders and sticky things

Can different bird species communicate with each other? Why am I so sweaty? Why do animals have an even number of limbs?