Mosquitoes: The Deadliest Animal You're Accidentally Breeding in Your Garden Mosquitoes don't kill directly. They spread disease. Malaria, dengue, Zika, yellow fever, chikungunya—they're all transmitted through simple mosquito bites. Female mosquitoes need blood to make eggs. When they bite someone infected, they pick up pathogens. Next bite? They pass those pathogens along. House to house. Village to village. Silent and efficient. Your Garden Is Probably Breeding Them Mosquitoes breed in standi