Evergreen forests are types of forests where trees retain their leaves throughout the year. These trees, such as pine, spruce, and fir, are adapted to various climates, including cold and temperate regions. The continuous foliage provides habitat for many animals and helps maintain the ecosystem's balance. These forests play a crucial role in the environment by absorbing carbon dioxide and producing oxygen. They also prevent soil erosion and support biodiversity by offering shelter and food for various species, including birds, mammals, and insects. Evergreen forests are vital for both wildlife and human communities.