Big Pacific

Filming the big Pacific, an ocean that covers a third of the planet, was a grand idea that became a gigantic undertaking. Follow the adventures of the filmmakers behind the series. This "Making Of" special explores the highlights and challenges of wildlife filmmaking.

A mass spawning event happens on an empty shoreline high in the Gulf of California: the grunion run. Thousands of silvery bodies flicker in the shallows in an explosion of life and death. No other fish spawns so boldly, in the open air, under blazing sun. This is a tidal wave of reproduction.

Yellow-eyed penguins care for their young together. Nesting in the dense New Zealand forest, the pair will take turns fishing so one parent is always watching over their chicks. But when the breeding season ends and the offspring leave, the partnership will dissolve – until the next mating season.

In the Pacific, the quest to multiply has spawned a stunning array of unusual behaviors and adaptations. There are forest penguins with a tenuous marriage, the secret rendezvous of great white sharks, and the tale of male pregnancy.

For some life in the big Pacific, mating can be the kiss of death: Along the California coastline sea otters’ courtship is a wrestling match with no holds barred and females can be drowned in the process.

In the Pacific, the quest to multiply has spawned a stunning array of unusual behaviors and adaptations. There are forest penguins with a tenuous marriage, the secret rendezvous of great white sharks, and the tale of male pregnancy.

The Peppered Moray Eel is known by many names, but has a little known behavior that scientists have only recently discovered. In the Marshall Islands, the peppered moray propels itself from the familiarity of the water to hunt crabs on land. Once high tide arrives, the moray eels return to the ocean, and the remaining crabs survive another day.

Manta rays stretch to 15 feet across. To reach this size, they must nearly constantly feed on prey so minute it is just a haze in the water. A rich patch of plankton starts a feeding frenzy amongst the manta rays. They gracefully glide though the water while filtering the plankton with feather-like "rakers" deep within its gills.

There is plenty of food in the Pacific Ocean, but it is the challenge of finding that food that drives all life in the Pacific. In the voracious Pacific we meet a destructive army of mouths, a killer with a hundred mouths and the biggest mouth in the ocean.

On the Galapagos Islands, marine iguanas have developed new behaviors to make the most of the rich meadows of algae offshore. They can hold their breath up to an hour while feeding on the algae. After the excursion, a gland in the marine iguana’s nose filters out excess salt that it unavoidably ingests while foraging in the ocean. Then all the iguana has to do is sneeze.

There is plenty of food in the Pacific Ocean, but it is the challenge of finding that food that drives all life in the Pacific. In the voracious Pacific we meet a destructive army of mouths, a killer with a hundred mouths and the biggest mouth in the ocean.

Nature creates her own battles. In the waters around Hawaii, Humpback Whales complete a mass migration from northern feeding grounds; they are gathering to mate. But males outnumber receptive females, and a testosterone-fueled event known as the heat run sees a brawl of gargantuan proportions as the males clash for the right to mate.