
Explore the drama of realms more dynamic than you can imagine, where predators and prey swirl in an epic struggle for survival. Find out why scientists see the oceans as the ultimate frontier for exploration, where we know less than we know about the universe at large.

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Meet the Dusky Shark, a large predatory shark with a serious attitude that hunts coastal and offshore waters.
Robin and Eli encounter the oceanic whitetip shark, one of the most dangerous sharks in the world.
Tiger sharks display a wide range of behavior, if you're playing in the surf or diving in deep water when you meet one, the experience can be quite different.
The lemon shark is one of the most intelligent sharks, and is known for a vicious temper... but do they actually respond to human touch and affection?
Eli and Robin investigate bull shark behavior when confronted with SCUBA and then with Freedivers.
Darwin's great-great-granddaughter and a crew of authors, artists and scientists retrace Charles Darwin's voyage; a journey from Tenerife to the rainforests of the Amazon.
The clipper crosses the Strait of Magellan; Redmond examines the value of salmon farms; Sarah retraces Darwin's journey into the Andes Mountains, an expedition he considered to be one of the highlights of his voyage.
The crew makes for Australia to examine the effect that human habitation and the introduction of invasive species has had on the island; how climate change has impacted the land and its inhabitants.