Sky Nature HD Wednesday

Patrick travels to Yellowstone National Park, where he discovers the positive, top-down domino effect that wolves have on their environment

Alison and wildlife vet John Lewis are in Turkey to collect a young chimpanzee previously stolen from the wild and kept as a pet

Alison arrives back at the park with rescued chimpanzee Toprish and the team are keen to greet her. Marmoset Freya is on the road to recovery after a leg operation

Two harbour seals arrive in the night with wounds that need care. Hope's vulture is showing signs of progress and an old friend joins the team

Four squirrels are brought in with their tails tangled together. The team save one, but there's a question mark hanging over the others. Zak's bald eagle is finally released

A six-month-old orangutan falls from a tree and badly damages one of her eyes. Meanwhile, a flash flood threatens the release of Clara and her daughter Clarita

While shell ducks forage and defend their home, young rabbits discover they're not safe and spoonbills fight over nests

Exploring what it is like to be a parent in the animal kingdom

A look at how the desert of the Kalahari dominates southwestern Africa. Rain disappears as it quickly as falls, providing its plucky inhabitants with brutal conditions

Alison and wildlife vet John Lewis are in Turkey to collect a young chimpanzee previously stolen from the wild and kept as a pet

Alison arrives back at the park with rescued chimpanzee Toprish and the team are keen to greet her. Marmoset Freya is on the road to recovery after a leg operation

Two harbour seals arrive in the night with wounds that need care. Hope's vulture is showing signs of progress and an old friend joins the team

Four squirrels are brought in with their tails tangled together. The team save one, but there's a question mark hanging over the others. Zak's bald eagle is finally released

A six-month-old orangutan falls from a tree and badly damages one of her eyes. Meanwhile, a flash flood threatens the release of Clara and her daughter Clarita

While shell ducks forage and defend their home, young rabbits discover they're not safe and spoonbills fight over nests

A look at Kangaroo Island, a fortress cut off by wild seas and battered by brutal southern ocean winds

A look at how the desert of the Kalahari dominates southwestern Africa. Rain disappears as it quickly as falls, providing its plucky inhabitants with brutal conditions

Alison and wildlife vet John Lewis are in Turkey to collect a young chimpanzee previously stolen from the wild and kept as a pet

Alison arrives back at the park with rescued chimpanzee Toprish and the team are keen to greet her. Marmoset Freya is on the road to recovery after a leg operation

Following a 750km journey down the Drava river, starting with the current's Alpine origins to its delta in the Pannonian Basin

Mafia Island, off Tanzania's coast, a haven for creatures both above and below the water

A look at how the desert of the Kalahari dominates southwestern Africa. Rain disappears as it quickly as falls, providing its plucky inhabitants with brutal conditions

A look at Kangaroo Island, a fortress cut off by wild seas and battered by brutal southern ocean winds

Exploring what it is like to be a parent in the animal kingdom

Snakes, spiders and scorpions are the kind of creepy crawlies many fear the most. In Africa, these species are refined predators

Following a 750km journey down the Drava river, starting with the current's Alpine origins to its delta in the Pannonian Basin

Mafia Island, off Tanzania's coast, a haven for creatures both above and below the water

Two harbour seals arrive in the night with wounds that need care. Hope's vulture is showing signs of progress and an old friend joins the team

Four squirrels are brought in with their tails tangled together. The team save one, but there's a question mark hanging over the others. Zak's bald eagle is finally released

A six-month-old orangutan falls from a tree and badly damages one of her eyes. Meanwhile, a flash flood threatens the release of Clara and her daughter Clarita

Patrick is in Costa Rica to witness the annual mass nesting of sea turtles, as well as the predatory jaguars that come in for the kill