John Snow memorandum, tough tardigrades, foul fish

Science commentator Siouxsie Wiles joins Kathryn to talk about the John Snow Memorandum, put forward in response to the herd-immunity Great Barrington Declaration. Tardigrades were always known to be tough, but now it seems they can survive exposure to UV light. And fish smells strong and unpleasant to many, but it seems there's a gene mutation in some Icelandic people that can make it smell less intense. Associate Professor Dr Siouxsie Wiles is the head of Bioluminescent Superbugs Lab at the University of Auckland.