A look at why a seal throw an octopus at a kayaker; why a moth is drinking from the eye of a bird in the Amazon jungle and what surprising creature has been leaping out of the Irish Sea.
Leading experts examine a rock in a crate of finds from an archaeological dig in Africa, which could contain a very rare 200-million-year-old dinosaur skull. The museum staff prepares for the Wildlife Photographer of the Year awards. Other artefacts from the museum featured in this episode include meteorite fragments that are older than the solar system and the oldest complete beetle specimens ever found in the UK.
Part 2: Visitors David discovers the creatures that visit the reef every year, from birds to whales, some travelling thousands of kilometres to get there. Using the latest technology, David dives into the shark-infested waters of Osprey Reef in the Triton submersible. Sixty years after his first visit to Raine Island, he returns to the nesting grounds of the green sea turtle and at Lady Elliot Island marvels at manta ray cleaning stations. New tracking technology allows David to follow the story of visitors like the dwarf minke whales. Stunning satellite imagery and computer animation reveal their journey and David discovers their surprising reasons for returning and why the reef is vital for their survival.
Steve finds out how washing our clothes is harming our marine life. Why has the fish and chips supper changed? And which lobster is making a comeback? Plus why is one man fascinated by 'the Christmas Tree fish of the sea? Chris finds out. Presented from Herne Bay in Kent .