Tentacles, extensions of an Octopus' lips, are the secret weapon for this underwater killer.

Cuttlefish are killers from the moment they hatch, honing their skills into adulthood.

Here air, water, land, and life combine in spectacular fashion, and provide refuge for a host of creatures.

Oak Woodlands fill with the sound of acorn woodpeckers busily stocking up before hibernation.

Nourishment from the sea feeds Big Sur's visitors as the promise of abundant food lures birds from as far as Antarctica.

Spanning the contact between shoreline and open sea the Kelp forest unites both worlds and provides sanctuary.

Elephant Seals lounge on the sand of Big Sur's shores, where the females give birth.

Big Sur is full of Sea Otto's favourite foods so less time to hunt leaves more time for play.

Californian Condor, one of the rarest creatures on earth, are giants among birds.

Crocodiles surround this beautiful island. Dr. Brady Barr and the University of Florida teach some capture techniques.

Crocodiles surround this beautiful island. Dr. Brady Barr and the University of Florida teach some capture techniques.

Crocodiles surround this beautiful island. Dr. Brady Barr and the University of Florida teach some capture techniques.

Crocodiles surround this beautiful island. Dr. Brady Barr and the University of Florida teach some capture techniques.

Armand Leroi leads us on an unforgettable journey retracing the adventurethat inspired Darwin's The Origin of Species.

Armand Leroi leads us on an unforgettable journey retracing the adventurethat inspired Darwin's The Origin of Species.

Armand Leroi leads us on an unforgettable journey retracing the adventurethat inspired Darwin's The Origin of Species.

Armand Leroi leads us on an unforgettable journey retracing the adventurethat inspired Darwin's The Origin of Species.

Armand Leroi leads us on an unforgettable journey retracing the adventurethat inspired Darwin's The Origin of Species.

The Russian Arctic, extreme habitat and haven for polar bears, lemmings, arctic foxes and walruses.

The Russian Arctic, extreme habitat and haven for polar bears, lemmings, arctic foxes and walruses.

The Russian Arctic, extreme habitat and haven for polar bears, lemmings, arctic foxes and walruses.

The Russian Arctic, extreme habitat and haven for polar bears, lemmings, arctic foxes and walruses.

Watch what happens when photographers have a close encounter with a whale.

Caught in the Act reveals some of the most incredible and disturbing animal acts ever captured on film.

Caught in the Act reveals some of the most incredible and disturbing animal acts ever captured on film.