From rivers to oceans, water wars rewrite the rules of conflict; gravity has no meaning underwater. Weird and wonderful creatures of the reef terrorise each other as they battle for an inch of space.

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.

Yellowstone is one of the most powerful supervolcanoes on Earth; what would the consequences if it erupted? Leading experts show us the different possible scenarios of a Yellowstone super eruption.

Two devastating earthquakes hit Mexico in quick succession, and an Aussie storm chaser becomes trapped in the middle of the most powerful tornado ever recorded in El Reno, Oklahoma.

We dive into the planet's fiercest aquatic battlegrounds. From jaguars hunting caiman in the Pantanal to venomous platypus duels. Across continents, creatures fight to rule their watery domains.

Tigerfish are Africa's most fearsome-looking fish, but are they man-eaters? Jeremy decides that the only way to get an answer is to offer himself as live bait, but he first has to get past the crocs...

As the rivers melt and waters rise across the Arctic, Alaskans try to stay ahead of the changing landscape.

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.

Yellowstone is one of the most powerful supervolcanoes on Earth; what would the consequences if it erupted? Leading experts show us the different possible scenarios of a Yellowstone super eruption.

As the rivers melt and waters rise across the Arctic, Alaskans try to stay ahead of the changing landscape.

A rare tornado decimates a small town in rural Uruguay, snaring a man in his car and obliterating a huge warehouse.

Tigerfish are Africa's most fearsome-looking fish, but are they man-eaters? Jeremy decides that the only way to get an answer is to offer himself as live bait, but he first has to get past the crocs...

As the rivers melt and waters rise across the Arctic, Alaskans try to stay ahead of the changing landscape.

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.

We dive into the planet's fiercest aquatic battlegrounds. From jaguars hunting caiman in the Pantanal to venomous platypus duels. Across continents, creatures fight to rule their watery domains.

Tigerfish are Africa's most fearsome-looking fish, but are they man-eaters? Jeremy decides that the only way to get an answer is to offer himself as live bait, but he first has to get past the crocs...

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.

A rare tornado decimates a small town in rural Uruguay, snaring a man in his car and obliterating a huge warehouse.

Tigerfish are Africa's most fearsome-looking fish, but are they man-eaters? Jeremy decides that the only way to get an answer is to offer himself as live bait, but he first has to get past the crocs...