
About this season
Meets the creatures whose alarming ability to adapt to new surroundings has allowed them to thrive in new areas, and create problems.
Episodes (6)

1. Cocaine Hippos
Aired 14 July 2011 • 44 min
The infamous drug lord Pablo Escobar was notorious for smuggling cocaine, but perhaps less known for illegally importing exotic species to his personal zoo.

2. Pigzilla
Aired 21 July 2011 • 44 min
As many as 23 million feral pigs have taken over Australia, causing an untold amount of damage.

3. Giant Swamp Rats
Aired 28 July 2011 • 44 min
Giant swamp rats are taking over the U.S. and destroying fragile ecosystems from Maryland to Oregon.

4. Moose Rampage
Aired 4 August 2011 • 44 min
A moose in the country is no big deal, but a moose in a New York suburb is a recipe for disaster.

5. Coyote Army
Aired 11 August 2011 • 44 min
Coyotes are invading backyards across America. With sharp teeth, wily intelligence and a body built for speed, these formidable predators can adapt and survive in nearly any environment.

6. Bed Bug Doomsday
Aired 18 August 2011 • 44 min
More and more people are falling victim to one of mans oldest parasitic pests, one that lives in colonies hidden in our furniture and literally drinks our blood while we sleep: bed bugs.