When asked about dangerous animals, many people might say snakes, spiders, or other poisonous creatures. Others might point to ferocious animals like sharks, bears, or tigers. The savvy people might say that humans are the most dangerous.
They would all be wrong.
The little blood-sucking mosquito is the most dangerous creature on earth, causing the deaths of hundreds of thousands of people every year. Compare that to 10 deaths attributed to wolves or sharks or a hundred deaths attributed to lions and elephants and the little flying pests seem to be incredibly dangerous.