“In the end the red weed succumbed almost as quickly as it had spread. A cankering disease, due, it is believed, to the action of certain bacteria, presently seized upon it. Now, by the action of natural selection, all terrestrial plants have acquired a resisting power against bacterial diseases—they never succumb without a severe struggle, but the red weed rotted like a thing already dead. The fronds became bleached, and then shriveled and brittle. They broke off at the least touch, and the waters that had stimulated their early growth carried their last vestiges out to sea.” InfectionBacteriaAlien InvasionWeedsAlien Life Forms Book:The War of the Worlds Source: The War of the Worlds