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…showed last 75 words of 1288 total…the tropical rain forest, or they come from tropical savanna that is being settled rapidly by people. The tropical rain forests are the deep reservoirs of life on the planet, containing most of the world's plant and animal species. The rain forests are also its largest reservoirs of viruses, since all living things carry viruses. Which means that the next time the Ebola virus emerges from the jungle it might be much harder to control.