TV Guide for Today Saturday 11 in Sky Nature

An exploration of the remote wonder of the Exuma Cays, the Bahamas' first ocean park - a largely unexplored region made up of hundreds of tiny islands.

The amazing world of the flying squirrel, typically found along the shores of Lake Erie, but now moving their territory towards Lake Ontario.

How the elk got a second chance. It went extinct in Ontario, but is now recovering after being re-introduced.

A look at Australia's Wild West - The Kimberley - the animals who live there and tracking the quests of those working to protect them. Cameras follow wallabies, koolamana lizards and crocodile hatchlings as they face the wild river's dangers and discover the true power of this waterway.

The clinic deals with the aftermath of a flood in Brisbane. A baby kangaroo is in need of round-the-clock care and Karina tackles the turtle waiting list.

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.

Lizzie Daly sets off on the final leg of her journey to where Australia's desert meets the Indian Ocean, confronting challenges of survival on the way and diving with tiger sharks and manta rays.

Animals that have unlikely friendships with humans, beginning with Sirga the lion, whose human pal, Val, has been by her side since she was an orphaned cub.

A visit to the ranch that Albert the camel runs with his human friend Alex, and a check-in with Herbie the wallaby as he gets pampered.

Documentary revealing how the African elephant has conquered the continent, following three vastly different herds - a matriarch leading her family across the merciless Namibian desert, a family protecting its young calf on the unforgiving planes of the Okavango Delta and a bull elephant searching for a mate along the immense Zambezi River.

The secrets of the most extreme sleepers of the animal kingdom, looking at how they deal with sleep deprivation and trying to discover whether animals dream.

A global investigation into insect declines, exploring their diversity and their critical roles on the planet. Scientists reveal the beauty of bugs, from pollinators to insect assassins to the tiny clean-up crews that purify the planet.

Learning how bees, butterflies, moths and other pollinators keep the fields fruitful and exploring what life would be like if these busy bugs vanished.

Felines and canids clash across the world. This edition dives into direct battles and strategies to steal food. Intelligence and strength decide who reigns in each territory.

A look at Australia's Wild West - The Kimberley - the animals who live there and tracking the quests of those working to protect them. Cameras follow wallabies, koolamana lizards and crocodile hatchlings as they face the wild river's dangers and discover the true power of this waterway.

The power struggles in an ancient citadel, once home to Sri Lanka's kings but now ruled over by a new dynasty - monkeys. The jungles are a monkey's paradise but not all are equal. Anna sits at the bottom of the social ladder - and with a newborn baby, life is getting tougher.

Having come of age, male macaque Ravi leaves home for a journey of a lifetime. It will involve the big city, grave dangers and finding a new troop.

Sri Lanka's ancient temples are home to tufted grey langurs, toque macaques and purple-faced leaf monkeys - but there is trouble in the monkey paradise.

Following his visit to the Great Barrier Reef in 1957, naturalist and broadcaster David Attenborough returns and uses the latest filming techniques to unlock the secrets of the natural wonder. In the first edition, he descends beneath the waves at night and uses cutting-edge technology to generate computer scans of the sea floor. He also learns about a complex community of animals, as well as the annual coral spawning, which is responsible for the great diversity in the reef.

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.

Wildlife documentary. This series follows a pair of warring cheetahs as they fight for possession of their cubs.

In Zimbabwe, an African wild dog pack find themselves outnumbered by lions and hyenas, and the pups must learn quickly if the pack is to survive.

Following the wild dog packs of Africa. Roaming with the pups of the Manzi and Kakumbi packs in South Luangwa, Zambia.

Julz runs into a lion-hyena showdown and Henry goes on a house call to the Kakumbi den, where a pup has gone AWOL.

Wildlife documentary. This series follows a pair of warring cheetahs as they fight for possession of their cubs.

In Zimbabwe, an African wild dog pack find themselves outnumbered by lions and hyenas, and the pups must learn quickly if the pack is to survive.

Exploring how whale sharks drive the culture of Santa Maria, the only European hotspot for these giants and why warming seas may be drawing them in.

The wildlife of New Zealand's South Island, a brutal place hemmed in by giant mountains, wild winds and the rough Pacific Ocean. Rare penguins are locked in a daily game of cat and mouse with giant sea lions, which must also battle the elements to survive.