The cool season ends, and savanna gliders explore the canopies of the savanna. The growing heat of Wilbooroo dries the wetlands, and forces crocs into overcrowded rivers, sparking territorial fights.

Isolated since the time of the dinosaurs, New Zealand's wildlife has been left to its own devices and its forests are stalked by predators from the Jurassic era.

From hyper-intelligent parrots to sinister snails and magical constellations of glow-worms, this is the story of New Zealand's wildest places and most resilient pioneers.

Arlie constructs an ingenious new invention to help catch gators - but the results are mixed - Shannon charms a shy gator, and trouble is afoot for Arlie and Jessica away from the park.

We explore the planet's fiercest alpine arenas. Bobcats hunt through snowbound forests, red foxes track mice under ice, and snow leopards risk fatal falls in Himalayan chases.

Jeremy searches in Alaska for an animal that could overpower an unsuspecting fisherman. Is there something in the river that fits the bill, or are large and surprisingly cold-water sharks to blame?

Summer's unpredictable weather poses challenges for Alaskans as they set out to gather resources to survive the oncoming winter.

From hyper-intelligent parrots to sinister snails and magical constellations of glow-worms, this is the story of New Zealand's wildest places and most resilient pioneers.

Europe is home to 100 active volcanoes; volcanic eruptions can turn out to be disastrous for the continent. Could Europe once again fall victim to a major and devastating volcanic eruption?

Summer's unpredictable weather poses challenges for Alaskans as they set out to gather resources to survive the oncoming winter.

The Cape in South Africa is struck by a violent storm and catastrophic wildfires that overwhelm the emergency services.

Jeremy searches in Alaska for an animal that could overpower an unsuspecting fisherman. Is there something in the river that fits the bill, or are large and surprisingly cold-water sharks to blame?

Summer's unpredictable weather poses challenges for Alaskans as they set out to gather resources to survive the oncoming winter.

From hyper-intelligent parrots to sinister snails and magical constellations of glow-worms, this is the story of New Zealand's wildest places and most resilient pioneers.

We explore the planet's fiercest alpine arenas. Bobcats hunt through snowbound forests, red foxes track mice under ice, and snow leopards risk fatal falls in Himalayan chases.

Jeremy searches in Alaska for an animal that could overpower an unsuspecting fisherman. Is there something in the river that fits the bill, or are large and surprisingly cold-water sharks to blame?

Alaskans must take advantage of the long days to prepare for the long freeze that lies ahead. In Kiwalik, the Hailstones embark on a seasonal native harvest, hunting for seagull eggs along the river.

Told through the experiences of its native species, this is the moving story of the changing fortunes of New Zealand's wildlife since humans first arrived.

North America's Pacific coast sits on a very active stretch of Earth's crust, where slowly moving tectonic plates help create a long chain of volcanoes of nearly 10,000km.

Alaskans must take advantage of the long days to prepare for the long freeze that lies ahead. In Kiwalik, the Hailstones embark on a seasonal native harvest, hunting for seagull eggs along the river.

The Cape in South Africa is struck by a violent storm and catastrophic wildfires that overwhelm the emergency services.

Jeremy searches in Alaska for an animal that could overpower an unsuspecting fisherman. Is there something in the river that fits the bill, or are large and surprisingly cold-water sharks to blame?