NatGeo Wild

'Polar Worlds With Bertie Gregory Mashup'. Wildlife filmmaker Bertie Gregory travels towards both extremes of the Earth to find the creatures who have mastered surviving in the North and South Poles.

Wildlife cinematographer Bob Poole journeys to a rugged and picturesque corner of Kenya to capture rare moments of the world's fastest predators.

A lyrical portrayal of the enchanting and wild creatures who call Lapland home.

Snowy climates can make for a harsh living, but the young in this film flourish as we learn how they weather and thrive in the coldest climates.

'S5/E3 - Mamba Mama'. A black mamba is trapped inside a couch in a tiny room with Simon and Siouxsie just inches away from being bitten at any time.

'S5/E2 - Storm of Snakes'. Simon and Siouxsie brave a tropical storm to rescue a black mamba - one slip and they're dead! Also, a green mamba takes the whole crew to new heights.

'S5/E1 - Hot & Bothered'. A huge black mamba is trapped inside a roof and Simon has to poke his head into dark holes to find it, risking a bite to the head in the process.

'S1/E1 - Heart Of The Emperors'. In Antarctica, emperor penguin societies reveal mysterious bonds forged from birth. It is the secret to surviving their extreme world.

'S1/E2 - Rebels With A Cause'. In the Southern Ocean, courageous penguins break the rules to find their edge. Taking risks helps make them the most successful of all.

'S1/E3 - Survival Of The Smartest'. The banded penguins ventured far beyond their icy homes, mastering deserts, tropical islands and even city life - to become perhaps the smartest of all.

Bertie journeys to South Africa to dive with fearsome great white sharks.

Bertie films a spectacular feeding frenzy off the coast of Portugal.

Bertie's mission takes him to Tanzania to film cheetahs on the hunt.

Nzuri learns new hunting methods so her cubs will survive.

Set in Kenya, this story from Dereck and Beverly Joubert tells how Immani protects her four cubs against fellow male cheetahs and other predators.

Bertie's mission takes him to Tanzania to film cheetahs on the hunt.

'S5/E3 - Mamba Mama'. A black mamba is trapped inside a couch in a tiny room with Simon and Siouxsie just inches away from being bitten at any time.

'S5/E2 - Storm of Snakes'. Simon and Siouxsie brave a tropical storm to rescue a black mamba - one slip and they're dead! Also, a green mamba takes the whole crew to new heights.

'S5/E1 - Hot & Bothered'. A huge black mamba is trapped inside a roof and Simon has to poke his head into dark holes to find it, risking a bite to the head in the process.

Bertie's mission takes him to Tanzania to film cheetahs on the hunt.