This week we hear stories on involving more AIs in negotiations, tiny algae that might be responsible for killing some (not all) dinosaurs, and a chemical intended to make farm fish grow faster that may be also be causing one area’s crocodile population to skew male—with Online News Editor David Grimm.  

Sarah Crespi talks to Rich Stone about being on the scene for a joint U.S.-China mission to remove bomb-grade fuel from a nuclear reactor in Ghana.  

Listen to previous podcasts.   

[Image:Chad Sparkes; Music: Jeffrey Cook]