Nature

American Spring LIVE: Episode 2 - Migration

Season 37 Episode 14 | 55m 12s

Breeding and the greening of the landscape are tied to another major spectacle of spring: the mass movements of animals as they take advantage of spring’s bounty. Meet the scientists who track the journeys of animals such as butterflies, birds, bison and bats over vast distances, from winter refuge to spring nesting grounds.

Aired: 04/29/19 | Expires: 01/31/21

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