/ Modified mar 25, 2012 7:01 a.m.

NATURE: Ocean Giants “Giant Lives”

Discover why size matters in the world of whales. Wednesday at 8 p.m. on PBS-HD 6.

nature_killer_whales_spot Off the coast of Monterey Bay, California, killer whales attack migrating grey whales.
PBS

The great whales – such as the blue and the bowhead – are the largest animals that have ever lived on our planet. Yet these mighty leviathans feed on tiny shrimp and sardines. “Giant Lives” discovers why size matters in the world of whales.

NATURE: Ocean Giants, Wednesdays at 8 p.m. on PBS-HD 6.

Watch Ocean Giants - Preview on PBS. See more from Nature.

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