Great Blue Wild

To catch a glimpse of some of the most spectacular natural wonders on the planet, you have to journey deep beneath the oceans. Dive into lush undersea gardens filled with vibrant vistas and otherworldly creatures.

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Created By

Status

Returning Series

Original Name

Great Blue Wild

First Air Date

November 2, 2015

Last Air Date

May 18, 2020

Seasons

Episodes

Language

English

Production Companies

Blue Ant Media

Networks

Smithsonian Earth

S03E04

Life in the Food Chain

To a marine biologist, any attempt at mapping an oceanic food chain begins and ends with plankton, from tiny bacterial algae to soft-bodied animals such as jellyfish. These microscopic miracles are responsible for producing two-thirds of atmospheric oxygen. Their place at the bottom of the chain has the greatest impact on marine life, whether they're providing nourishment for filter-feeders such as sardines and manta rays or predators like dolphins and sharks.

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