Does your blood type impact your dietary requirements? Is blue green algae safe to swim in? And why are there so many cicadas around this year? 

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 

Can we really hear the ocean in a seashell? What is considered the "right" amount of water? And why do our ears pop when we have the windows down while driving?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 

Does intermittent fasting affect your metabolism? Why do you feel nerves in your gut? And could hay fever reignite food allergies?

Dr Karl and special guest Dr Clare Collins answer these questions and more on triple j Mornings with Lucy Smith. 

Why do we have eyebrows? Is there a way to predict the future of evolution in humans? And what would our doctors ask Charles Darwin at a dinner party? 

Dr Karl and special guest Zoe Kean answer these questions and more on triple j Mornings with Lucy Smith. 

How does alcohol affect your sleep? Can energy be destroyed? And how do snakes stay so clean?

Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. 

What impact would living on Mars have on our bodies? Could we ever have 'Earth' on our identification? And how are the astronauts stuck on the International Space Station going?

Dr Karl and special guest Dr Adrian Brown answer these questions and more on triple j Mornings with Lucy Smith. 

Is math a human invention or something we discovered? How many ways are there to count? And can math offer a solution to microplastics? 

Dr Karl and special guest Matt Parker answer these questions and more on triple j Mornings with Lucy Smith. 

How realistic are shark attacks in movies? Why are there no monkeys in Australia? And how important are breathing exercises? 

Science communicators Zoe Kean and Ruben Meerman answer these questions and more on triple j Mornings with Lucy Smith. 

Will humans ever evolve to be immune to cancer? How effective are shark bands for surfers? And are our dreams made of atoms? 

Science communicators Zoe Kean and Ruben Meerman answer these questions and more on triple j Mornings with Lucy Smith. 

Why do some people have a higher caffeine tolerance? How common is shingles in people under the age of 30? And why don’t any mammals have green fur? 

Dr Karl answers these questions and more on triple j Mornings with Jordan Barr.