Sky Nature Tuesday

The Yukon River, in which thousands of salmon make the perilous trip to reach their spawning beds, dodging predators along the way

There's big news for one of the chimp groups, and rescued marmoset Jangles summons up the courage to join her new mate Reggie in the outside enclosure

Vet Nic Masters uses high tech diagnostic equipment to examine health issues in some of the park's smaller primates, including capuchin Louis and patas monkey Penelope

Bec patches up a bitten koala as new vets Ruby and Kerryn soothe a pack of itchy possums. Then, watch rescue officer Dani free a pair of trapped kookaburras

The African intertidal zone, sometimes water and sometimes land, and home to a unique universe of plants and creatures

Lady Elliot Island, the crown jewel of the Great Barrier Reef, a mesmerising swirl of colour and life - both above and below the water

There is unrest among the centre's primates and the staff say goodbye to a rehabilitated crocodile

It is the dry season in the Luangwa Valley and for herbivores food is hard to come by, but one animal's misfortune can be another's good luck

There's big news for one of the chimp groups, and rescued marmoset Jangles summons up the courage to join her new mate Reggie in the outside enclosure

Vet Nic Masters uses high tech diagnostic equipment to examine health issues in some of the park's smaller primates, including capuchin Louis and patas monkey Penelope

Bec patches up a bitten koala as new vets Ruby and Kerryn soothe a pack of itchy possums. Then, watch rescue officer Dani free a pair of trapped kookaburras

The African intertidal zone, sometimes water and sometimes land, and home to a unique universe of plants and creatures

Lady Elliot Island, the crown jewel of the Great Barrier Reef, a mesmerising swirl of colour and life - both above and below the water

Exploring the planet's most diverse woodlands and learning how the forests connect and nurture the lives of countless species

It is the dry season in the Luangwa Valley and for herbivores food is hard to come by, but one animal's misfortune can be another's good luck

There's big news for one of the chimp groups, and rescued marmoset Jangles summons up the courage to join her new mate Reggie in the outside enclosure

Vet Nic Masters uses high tech diagnostic equipment to examine health issues in some of the park's smaller primates, including capuchin Louis and patas monkey Penelope

Many non-native species have staked a claim along the coast of Nova Scotia, but at White Point Beach Resort in Liverpool, rabbits have hopped in for an extended holiday

A single year, season by season, in the lives of the wildest animals of Canada's east coast

Exploring how the praying mantis has the agility of a martial artist and an appetite for everything from flies to hummingbirds

It is the dry season in the Luangwa Valley and for herbivores food is hard to come by, but one animal's misfortune can be another's good luck

Exploring the planet's most diverse woodlands and learning how the forests connect and nurture the lives of countless species

There is unrest among the centre's primates and the staff say goodbye to a rehabilitated crocodile

Savannah life isn't easy, even for the mighty 'Big Five' - the lion, African elephant, leopard, buffalo and rhino. See how their adaptations help them in daily life

Many non-native species have staked a claim along the coast of Nova Scotia, but at White Point Beach Resort in Liverpool, rabbits have hopped in for an extended holiday

A single year, season by season, in the lives of the wildest animals of Canada's east coast

Exploring how the praying mantis has the agility of a martial artist and an appetite for everything from flies to hummingbirds

Bec patches up a bitten koala as new vets Ruby and Kerryn soothe a pack of itchy possums. Then, watch rescue officer Dani free a pair of trapped kookaburras

The African intertidal zone, sometimes water and sometimes land, and home to a unique universe of plants and creatures

Winter has arrived at the lower western shore of Hudson Bay, where polar bears reside. However, the ice that normally forms there is nowhere to be seen