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. 

Do animals get jet lag? How do snakes dig holes if they have no arms? And what impact would the reintroduction of extinct animals have on existing species? 

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

Why do I need to pee every time I get to my front door? How long could you survive in a car with just air conditioning? And does your sleep schedule matter as long as it's eight hours?

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

Are electric vehicles still better for the environment if you charge them with a non-renewable energy source? What happens if you hold your urine for too long? And can you get the physical symptoms of anxiety without feeling anxious? 

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