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S1, E1: These are all stealthy predators that get inside their hosts and lie dormant until it's time to strike. Dangerous and hard to detect, these are silent killers.
Documentary · 1 Jul 2009 · 41 min
Information
- Released
- 2009
- Run Time
- 41 min
- Rated
- 15
- Region of Origin
- United States
- © 2009 Discovery Communications Inc.
Languages
- Original Audio
- English