Sharks are seen as ocean killers, but are they? Rodolphe Guignard dives with them in Florida and the Bahamas while revealing surprising interactions and questioning if coexistence is possible.

As summer arrives, supersize sea snails try to fend off an invading gang of coral-hungry starfish and more.

The San Andreas Fault is the junction point of two tectonic plates stretching across San Francisco and Los Angeles; it is 1,300km long and currently the most surveyed phenomenon in the world.

Irma, a category five hurricane, devastates the Caribbean. In Fiji, a carer battles catastrophic floods to reach children at an orphanage.

Rodolphe Guignard explores how humans and crocodiles coexist in close quarters In Mexico; despite primal fears, he discovers these ancient reptiles to be curious, peaceful, and rarely dangerous.

Disgorging more water than the next nine biggest rivers combined, the Amazon is the mightiest of all. Jeremy discovers issues putting the river at risk by tracing the migration of the dorado catfish.

In the Arctic, the search for water, firewood, and other vital resources is a never-ending quest. It requires Alaskans to explore remote locations unfit for normal human existence.

As summer arrives, supersize sea snails try to fend off an invading gang of coral-hungry starfish and more.

The San Andreas Fault is the junction point of two tectonic plates stretching across San Francisco and Los Angeles; it is 1,300km long and currently the most surveyed phenomenon in the world.

In the Arctic, the search for water, firewood, and other vital resources is a never-ending quest. It requires Alaskans to explore remote locations unfit for normal human existence.

Heatwave Lucifer burns though Europe, triggering some of the worst wildfires in Portugal's history, while a Mojave mudslide traps motorists in a raging torrent of sludge.

Disgorging more water than the next nine biggest rivers combined, the Amazon is the mightiest of all. Jeremy discovers issues putting the river at risk by tracing the migration of the dorado catfish.

In the Arctic, the search for water, firewood, and other vital resources is a never-ending quest. It requires Alaskans to explore remote locations unfit for normal human existence.

As summer arrives, supersize sea snails try to fend off an invading gang of coral-hungry starfish and more.

Rodolphe Guignard explores how humans and crocodiles coexist in close quarters In Mexico; despite primal fears, he discovers these ancient reptiles to be curious, peaceful, and rarely dangerous.

Disgorging more water than the next nine biggest rivers combined, the Amazon is the mightiest of all. Jeremy discovers issues putting the river at risk by tracing the migration of the dorado catfish.

An unusually low snowfall and a late freeze-up in the Arctic presents new challenges to the Alaskans. Travel on the treacherous trails through the wilderness becomes more of a risk.

Footage of the Great Barrier Reef during the season of autumn, as the coral streets cool down.

In the heart of France there are more than 80 volcanoes. Humanity has often benefited from being near volcanoes. But the risk is always that an eruption could occur at any time without warning.

An unusually low snowfall and a late freeze-up in the Arctic presents new challenges to the Alaskans. Travel on the treacherous trails through the wilderness becomes more of a risk.

Heatwave Lucifer burns though Europe, triggering some of the worst wildfires in Portugal's history, while a Mojave mudslide traps motorists in a raging torrent of sludge.

Disgorging more water than the next nine biggest rivers combined, the Amazon is the mightiest of all. Jeremy discovers issues putting the river at risk by tracing the migration of the dorado catfish.