Spiders have gravity-defying ninja skills, they can hear without ears and they work together to gang up on huge prey. Spiders are murder machines!   Featuring: Dr Kate Umbers, Western Sydney University. Dr Alfonso Aceves-Aparicio, University Hamburg. Dr Jay Stafstrom, Cornell University. Dr Lena Grinsted, University of Portsmouth.   Production: Ann Jones, Presenter / Producer. Petria Ladgrove, Producer. Joel Werner, Script Editor.  Additional mastering: Angela Grant.    This episode of What the Duck?! was produced on the land of the Wadawarrung and the Kaurna people and was first broadcast on the 17th of December 2022.