Mosquitoes are a type of insect that are found in many parts of the world. They are known for their ability to transmit diseases such as malaria, dengue fever, and Zika virus. However, there are certain regions where mosquitoes are not found, or where their populations are greatly reduced.One such region is Antarctica, which is the southernmost continent on Earth. It is known for its extreme cold temperatures, which make it inhospitable for most forms of life, including mosquitoes. In addition to the harsh environmental conditions, the lack of standing water in Antarctica also makes it an unlikely habitat for mosquitoes.Another region where mosquitoes are not commonly found is the high mountains, such as the Himalayas, Andes and the Rockies. The high altitude and cold temperatures in these regions make it difficult for mosquitoes to survive. Additionally, the lack of standing water and vegetation also makes it difficult for mosquitoes to breed.Deserts are also known to have a limited number of mosquitoes due to the lack of water and vegetation. However, some species of mosquitoes are able to survive in desert habitats by breeding in water sources such as oases, and underground aquifers.Mosquito-free islands are also known to exist, such as certain islands in the Pacific and Caribbean. These islands are often small, remote and uninhabited, and lack the conditions necessary for mosquitoes to thrive.There are also some man-made solutions to control mosquito populations, such as the use of mosquito nets, insecticides, and mosquito traps. Some countries also use mosquito control programs, such as the use of pesticides, to reduce mosquito populations and prevent the spread of diseases.In conclusion, mosquitoes are found in many parts of the world, but there are certain regions where their populations are greatly reduced or nonexistent.