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.
Traveling is extremely arduous for microscopic sperm -- think of a human trying to swim in a pool made of...other humans.
It's time to check up on the Nsefu lion pride as they welcome seven new cubs into the fold, but can these new arrivals survive the hardships ahead? One of the cubs, nicknamed The Dreamer, strikes up a friendship with the awkward, now-adolescent Misfit. Together, they forge a special bond that bodes well for their future. Do these two unlikely friends have what it takes to survive?
Exploring an unknown world 10,000 m beneath the waves. After capturing a giant squid on film, NHK's deep-sea film crew explores our planet's deepest point The Mariana Trench is nearly 7 miles deep. The water pressure is immense, and it's a world that's long been out of our reach. What creatures could survive such hostile conditions? This is an expedition to explore the earth's deepest frontier. Narrated By David Attenborough.
Forests and woodlands are the green lungs of the Earth and vital to mankind's survival. The air we breathe, the timbers we build with... the medicines we take. The list of benefits they provide is exhaustive. As is the list of other animals making a meal of these resource-rich environments.