Nature's Great Race

The Herd Gets Back on Track

Clip: Episode 2 | 1m 53s

With just 13 days left until much of the herd is due to give birth, this herd still has 180 miles to go. But the herd finally arrives where the team predicted. They descend from the mountains, spilling into the valley by the thousands.

Aired: 07/19/17

Rating: TV-PG

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