Sky Nature TV Guide

Using the latest technology, the naturalist explores the shark-infested waters of Osprey Reef in the Triton submersible, before returning to the nesting grounds of the Green Sea Turtle, 60 years after his first visit to Raine Island. He also marvels at manta ray cleaning stations on Lady Elliot Island, and tracks dwarf minke whales to discover their surprising reasons for returning, and why the reef is vital for their survival

The naturalist examines what the next few decades may hold for this remarkable ecosystem, and looks at the work of scientists who are trying to preserve the area and the species that inhabit it, assisted by research vessel the Alucia. He also embarks on an ambitious attempt to dive further into the reef than ever before to witness the resilient coral that live down in the depths and see if they hold answers that may help to overcome challenges that lie ahead, as the impact of humans on the reef continues to take its toll

As water flows from Australia's highlands into the seas, environmental changes set the stage for unexpected clashes between predators and their prey

After the dry season lowers the waters, siblings Kimba and Maya risk crossing the river to search for their parents. They run the gauntlet of the densest populations of crocs and hippos in Africa

A look at life in tropical forests, featuring a poison dart frog launching a toxic barrage and turf war between jaguars and caimans

Heading to America's far north for a look at its waterways' fighters, as a spring thaw pits eagles against herons and dragonfly nymphs against venomous water bugs