This week on Across The Park, Dr Joel, Dr Mick, and Dr Gaby are joined by Dr Karl Kruszelnicki! In honour of his new book Dr Karl’s Surfing Safari Through Science being released, we ask all of the questions! We start of by discussing the most well paid athletes, what happens when you run marathons, emergency poos, animals that can grow their own arse, how we can fix global warming, expensive coffee, new animals, Dr Karl’s hobbies, boxing chess, HIIT, LIIT, card games, Dr Karl’s team sports, Dr Gaby’s hives, are we built for injuries?, building muscle, concussions, holograms in books, dead fish swing upstream, black holes, looking after our bodies, and we play a game about surfing!