Question: Several other answers and corrections state that the reddish liquid sprayed by the tripods was what essentially grew the red vines. However I thought I heard someone in the film say something along the lines of "using us (i.e. blood) as fertiliser". Can someone please clarify?
scwilliam
4th Aug 2006
War of the Worlds (2005)
6th Jul 2005
War of the Worlds (2005)
Question: Why did the aliens need the human blood, and why did they spread it around? Also, when Ray and Rachel are in Boston, he breaks a white thing off a statue. What was it? And why was it dying?
Answer: They didn't spread blood around. That was a red fluid seeding the planet with the red vine. The red vine was the first stage in making the Earth suitable for Martians. At the statue, Ferrier broke off a piece of the red vine - dead and brittle. It was the first clue that Martian life wouldn't survive on Earth.
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Answer: Since the tripods tended to spray the red fluid shortly after pulling a human into themselves, it seems a good assumption that the red fluid is essentially blood. Given this, it seems likely that the "spore" of the vines is spread in the red fluid.
scwilliam