
Episode 2 Preview
Preview: Season 2 Episode 2 | 30sVideo has Closed Captions
We enlist allies from nature to fight in our battles. But is the enemy of an enemy always a friend?
In humankind’s conquest of planet Earth, we rely on improbable allies – species we’ve recruited from nature to help us defeat our adversaries. But in this brave new world of “biocontrol,” is the enemy of an enemy always a friend?
Problems playing video? | Closed Captioning Feedback
Problems playing video? | Closed Captioning Feedback

Episode 2 Preview
Preview: Season 2 Episode 2 | 30sVideo has Closed Captions
In humankind’s conquest of planet Earth, we rely on improbable allies – species we’ve recruited from nature to help us defeat our adversaries. But in this brave new world of “biocontrol,” is the enemy of an enemy always a friend?
Problems playing video? | Closed Captioning Feedback
How to Watch Human Footprint
Human Footprint is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.
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Surprising Moments from Human Footprint
Do you think you know what it means to be human? In Human Footprint, Biologist Shane Campbell-Staton asks us all to think again. As he discovers, the story of our impact on the world around us is more complicated — and much more surprising — than you might realize.Providing Support for PBS.org
Learn Moreabout PBS online sponsorship(announcer) Welcome to the age of humans.
(woman) Biological control is not an eradication tool.
-It’s a management tool.
-There was the sense that biological control was easy.
-It’s not.
-It has deep and ethical implications.
(Shane) Ugh, that’s so many mosquitoes!
Why, I guess, is the question.
(man #1) ’Cause you get rid of the competition.
(man #2) Don’t let it get away.
(Shane) I’m gonna be thinking about that for a very long time.
(chuckling) (electronic music) ♪
Duck Deployments and Mite Airstrikes: Nature’s Pest Patrol
Video has Closed Captions
Clip: S2 Ep2 | 7m 18s | From ducks to drones, Shane explores how farmers fight pests with nature — not chemicals. (7m 18s)
The Rise, Reign, and Reckoning of Australia’s Cane Toads
Video has Closed Captions
Clip: S2 Ep2 | 13m 28s | Shane traces how cane toads conquered Australia — and how science is turning the tide. (13m 28s)
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