The world's most dangerous animals--causing more deaths per year than any other creature--is the mosquito. According to the World Health Organization (WHO), mosquito bites result in several million human deaths every year, the majority from malaria, but also from dengue, yellow fever and other mosquito-borne diseases.
Even if we do not reside where 40 percent of the world's population is so threatened, mosquitoes can make gardening unpleasant and, at times, nigh on impossible.