Native habitat: All over the world with the exception of Antartica
Death toll: Between 300 and 500 million cases of malaria occur each year and a child dies from malaria every 30 seconds
Why you should be terrified of them: Believe it or not, mosquitos are the most deadly insect in the world.

The parasite known as the Anophele mosquito carries what creates the deadly disease known as malaria. Malaria is not contagious because it is a blood transmitted disease. Only the female species can transmit the disease. The United States has dismissed malaria as a public health issue because unlike other countries, they have the money to fund treatment. Only a few hundred cases of this disease are reported each year in the United States compared to the many cases in many other countries. Several drugs exist, but there is no malaria vaccine at the moment.