Chris Packham, Steve Backshall and Liz Bonnin conclude the week of live programmes with a look at what the future holds for the next generation of marine life, and how scientists are embracing new forms of technology to help preserve sea life. Chris studies humpback whales at the Baja Peninsula, Liz hears an underwater dawn chorus in Australia, as well as encountering turtle hatchlings and fluorescent corals, while Steve reports on one of the world's biggest gatherings of hammerhead sharks in the Bahamas. Last in the series.