Subscribe and 🔔 to the BBC 👉 https://bit.ly/BBCYouTubeSub Watch the BBC first on iPlayer 👉 https://bbc.in/iPlayer-Home More about this episode: http://www.bbc.co.uk/programmes/b00nhmwz Stephen Fry and zoologist Mark Carwardine continue their journeys to the ends of the Earth, travelling by car, boat, plane and horse through Mexico. In a dramatic conclusion to the series, the travellers have a close encounter with grey whales and meet the deadly Humboldt squid in a search for the mighty blue whale, the biggest creature that has ever lived. #bbc