Steve Backshall leads a team of elite explorers - including world leading underwater cave explorer Robbie Schmittner, former Royal Marine Aldo Kane and diving camera operator Katy Fraser - into the wilds of the Yucatan Peninsula in Mexico. Under the vast jungle here is the largest unexplored network of caves in the world, comprising thousands of kilometres of passageways. They are stunningly beautiful but incredibly dangerous - much of the system is under water. First the team must trek through tough, scorpion-infested jungle to camp alongside a giant sinkhole in the jungle floor - a dark gateway to an underworld full of nightmarish creatures.
Once life arrived in the Galapagos, it exploded into unique and spectacular forms. David Attenborough investigates the driving forces behind such evolutionary innovations. We learn that life must be able to adapt quickly in these ever-changing volcanic landscapes. It has resulted in species found nowhere else in the world, such as giant whale sharks and marine iguanas that can spit sea-salt from their noses, dandelion seeds that grow into tree-sized plants and spiders that can blend perfectly into the darkness. Adaptation has been the key to survival in these islands so far, but the story of life in the Galapagos doesn’t end here. The catalyst that triggers these explosions of life remains in place.
For many endangered baby animals, the right zoo can mean hope for the entire species. Watch an endangered red panda cub get a warm welcome at Cornwall's Newquay Zoo, a rare baby macaque receive care from parents and keepers alike at the Dudley Zoological Gardens, and more.
Dr Helen Czerski examines the hottest natural phenomena on the planet - lightning. Bolts of lightning five times hotter than the surface of the sun strike our planet over 3 million times every day - and yet we still know little about this deadly force of nature. Now, specialist photography is revealing how lightning travels through the air, high-speed cameras are unlocking the secrets of upward lightning that's triggered by our urban landscapes, and scientific expeditions are capturing rare images of intense electrical discharges over 80 kilometres wide.
Also known as "The Best of Seven Worlds, One Planet". The most spectacular moments from the Seven Worlds, One Planet series that highlights the incredible rich and wonderful diversity of life found on our planets seven unique continents. Millions of years ago huge forces ripped apart the Earth's crust, creating seven distinct continents. Over time, each one developed its own remarkable wildlife. We see the extraordinary variety of life found in South America and visit the largest of all continents - Asia, so big it still hides rarely seen creatures. We explore the cities of Europe, full of surprises, and the wilds of Africa, home to the greatest gatherings of animals. We travel to the searing heat of Australia with its weird and wonderful wildlife, and witness the pioneering animals of North America that make the most of every opportunity. Finally, we venture to the frozen wilderness of Antarctica were, on the most hostile continent of all, life manages to thrive against the odds. And we reveal how today the biggest challenge faced by wildlife is the impact of human activity on all seven of our incredible continents.
Canada's Devon Island is the largest uninhabited island in the world--and with good reason. Temperatures below freezing for nine months of the year and an annual rainfall comparable to the Gobi Desert leave the icy landscape so barren that NASA uses it to simulate conditions on Mars. Take an exhilarating expedition into a land where only the most experienced Inuit hunters dare set foot.