Is There A Way To Find Out If Certain...
Technology2 mins ago
No best answer has yet been selected by Loosehead. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.I was under the impression that the invaders were using it as part of a terraforming plan - to shape the Earth into something that resembled their planet, and would be more compatible with their needs.
The movie gives the impression that human blood was a component in the weed (not sure if this is the case in the novel). Strange how they knew enough about Earth biology to do that, but not enough to know about bacteria...