David Attenborough attempts to animate the life of the ichthyosaur whose 200-million-year-old fossil remains were found on Britain's Jurassic coast. Using state-of-the-art imaging technology and CGI, the team reconstruct the skeleton and create the most detailed animation of an ichthyosaur ever made. Along the way, they stumble into a 200-million-year-old murder mystery - and only painstaking forensic investigation can unravel the story of this extraordinary creature's fate.
The leatherback sea turtle is a magnificent creature that can be found in Atlantic, Pacific, and Indian Oceans. This ancient species swims faster, travels further, and dives deeper than any other reptile on the planet. In the Atlantic, they migrate every year from their nesting grounds in the Caribbean to the chilly waters off the east coast of Canada where they feast on jellyfish. This epic annual journey – at a staggering 12,000 km – is the longest for any reptile in the world.
This episode of the documentary series focuses on the new giants, the heavyweights of the dinosaur world. It is only in recent years that experts have unearthed the biggest dinosaurs that ever lived. One monster eclipsed all others; more than seven times as heavy as diplodocus was the immense argentinosaurus - a single backbone was bigger than a human. For years, these giants were considered immune to attack from any predator - until the discovery of mapusaurus, a new giant killer whose fate appeared to be inextricably linked to argentinosaurus.
Like most big cats, the leopard is a master of secrecy. It's one of the hardest of all big cats to see, let alone observe. This is mainly because leopards need absolute invisibility to hunt. This is why they're such good climbers and why they evolved to be so incredibly secretive.
Deep in the rainforest of Central Africa lies an elephant oasis - a remarkable place that holds the key to the future for forest elephants. Over the last 20 years, Andrea Turkalo has been studying these enigmatic giants, getting to know over 4,000 intimately. She has begun to unravel the secrets of their complex social lives and the meanings of their unique vocalisations. New acoustic research is shedding light on the many mysteries that still surround forest elephant society. Will these endangered elephants finally speak out and tell Andrea what it is they need to survive?