An egg incubator is a device used to hatch eggs artificially, by maintaining the necessary temperature, humidity, and ventilation for the developing embryo. Incubators are used in a variety of settings, including by farmers to hatch chicken, quail, and other poultry eggs, by hobbyists to hatch exotic bird eggs, and by scientists to study the development of various species. The process of hatching eggs in an incubator generally involves placing the eggs in the incubator and setting the temperature, humidity, and ventilation to the appropriate levels for the species being incubated. The incubator will then maintain these conditions until the eggs hatch.