NOVA

Animal Espionage Preview

Preview: Season 46 Episode 23 | 26s Video has closed captioning.

How do you study an animal you can't even get close to? Camera traps and drones are revolutionizing wildlife biology by recording the secret lives of animals—from whales and tigers to elusive giant armadillos—all without disturbing them.

Aired: 11/27/19

Rating: NR

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