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	3
Episodes	18
Episode Runtime	0min
Language	English
Original Language	English
Production Countries	Canada
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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