The Land of the Snow and Ice • 2021 • episode "S1E3" • Europe's New Wild

41:47

Slip through millennia-old caves in the Yucatan Peninsula of Mexico. These spooky, labyrinth-like places were considered magical as early as the Mayan era. Plus you can hitch a ride with sucker fish, dodge gigantic ocean devil fish and be entranced by the dance of a majestic 6-metre long manta ray.

Part 6 • The Magic of The Big Blue • 2011 • Nature

48:08

David Attenborough narrates the final episode in the documentary series that shows our planet in all its glory. In this part, he looks at the largest of all habitats - the ocean.

11/11 • Planet Earth • 2006 • Nature

20:57

A look at how bats avoid bumping into each other at night; why a bottlenose dolphin seeks out the help of a scuba diver; are cicadas expert mathematicians.

S1E21 • Nature's Strangest Mysteries: Solved • 2019 • Nature

49:00

In Tokyo, there are unapproachable "lost islands" with unspoiled environs and rich wildlife. Minami Iwo-to, part of the Ogasawara island chain, is about 1,300km from the Japanese capital. Normally, entry is banned to protect the environment. An exception was made in 2017 for the first comprehensive scientific survey in 10 years. The island compresses multiple climate zones into a small area, offering researchers a rare opportunity to view evolution in action. Braving an arduous climb and a swarm of seabirds, the team discovers one new species after another.

2019 • Nature

58:54

Sophie is joined in the theatre by chirping crickets, hissing cockroaches and groaning deer to reveal the very different ways that animals have adapted their bodies to send audible messages that are vital to their species. She also explores how and why the human voice evolved to become the most versatile sound producer in the natural world. She demonstrates what sound actually is and how it travels. Unpacking the power behind sound, she uses it to shatter glass and reveal how the human body can resonate in a way that amplifies our voices to send our messages further. She also explores how different species use very different frequencies to communicate and why humans can only hear a fraction of these animal messages. Finally, she investigates why we all have unique vocal prints, and how computers are learning to recognise these.

1/3 • Royal Institution Christmas Lectures: The Language of Life • 2017 • Nature

24:00

Peregrine falcons are slowly rebounding from the edge of extinction, while snapping turtles face different life-threatening challenges. Learn about conservation efforts in Ontario, Canada to help give these threatened species a boost while they fight back.

5/8 • Great Lakes Wild • 2017 • Nature