Bed bugs are incredibly hardy, able to live within any area that humans journey to. But do they have any other purpose in life, rather than annoying you? In fact, this insect holds no other purpose than contaminating your home. Some other common guests in people's homes are ants. Once they have found their objective, they will mark their journey with a pheromone leading to their nest, informing the entire colony of the buffet they located. 

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