
1. Why Bridges Collapse: The Genoa Disaster
Aired: Aug 12, 2019The Polcevera Bridge in Genoa collapses on August 14, 2018, sending 27 vehicl...

What brought these sharks into the shallow waters of luxury holiday resorts, away from their natural hunting grounds in the open ocean? Could mounting pressure from humans – fishing, tourism and man-made climate change – be altering how these apex predators live and hunt?