Brian Cox and Robin Ince are joined by adventurer and naturalist Steve Backshall, veterinarian Jess French, and comedian and former doctor Adam Kay, as they are put to the test by an audience of curious children at Cheltenham Science Festival. We find out who would win in a battle between a shark and a crocodile (the answer involves a tennis court), why dogs don’t sweat like humans, whether macrophages might help us overcome antibiotic resistance and if AI might one day enable us to understand and directly communicate with animals. Producer: Melanie Brown Exec Producer: Alexandra Feachem BBC Studios Audio Production