Earth's largest land biome is the taiga, also known as the boreal forest. It spans across vast regions of Canada, Alaska, Russia, and Scandinavia, characterized by its coniferous forests, which include trees such as spruce, pine, and fir. The taiga experiences short summers and long, cold winters, leading to unique adaptations among its flora and fauna. This biome is critical for carbon storage and oxygen production and provides a habitat for diverse wildlife, including bears, moose, and various bird species. The taiga plays an essential role in the Earth's ecology and climate regulation.