The mosquito life cycle includes four stages: egg, larva, pupa, and adult (or imago). Adult females lay their eggs in stagnant water. The egg, larva and pupa stage usually take place in water. Development time, from egg to adult mosquito, is only five to fourteen days depending on the species and the temperature.
There are many natural predators to mosquitoes including birds, bats, several insects including the dragonfly, and fish. But because they reproduce so quickly, large scale mosquito control is attempted throughout the world.