There are a variety of species that you may come upon. They've been around for millions of years, so it's safe to assume that every living species has come across them.
Mosquitoes have buzzed in everyone's ear or left itchy bites on their bodies. Did you realize, however, that only the female bites you? You should be concerned because they can spread diseases including malaria, yellow fever, encephalitis, West Nile, and the newly discovered Zika virus.