David's top stories: Sperm racing – the latest in sports betting; and Sports reporter faces backlash for picking up a woman on live TV. Cosmologist Dr. Alexander Ji gives insight into how stars die and create the stuff we're made of. Dr. Janet McMordie chats about her peculiar job as a surgical hand double, and about transitioning into creative work later in life. (Check out Janet's podcast Second Act Actors here.) On Pet Talk, veterinarian Dr. Cliff Redford goes over breeds of cats you shouldn't own. (Check out Cliff's podcast here.) Dr. Matthew Lyle explains how workplace drama can bring people closer together. Dr. Sharyn Bistre Dabbah explores how optimistic and pessimistic medical detection dogs perform differently.

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