The document defines and describes deciduous forests. Deciduous forests are biomes mainly composed of trees that lose their leaves in autumn and winter. They are located across parts of Europe, Asia, North America, and South America. Deciduous forests have warm summers and cold winters, with frequent rain and potential snow in winter. Common plant species include maple, oak, beech, and elm trees, while animal species include squirrels, coyotes, raccoons, woodpeckers, black bears, wolves, and white-tailed deer. Human activity such as agriculture and logging have negatively impacted deciduous forest areas over time by reducing forest coverage and threatening valuable tree species.