Regenwälder, or rainforests, are dense forests characterized by high rainfall, typically exceeding 1750 mm (69 inches) annually. They are home to a vast diversity of plant and animal species, many of which are not found anywhere else on Earth. The most famous rainforests include the Amazon Rainforest in South America and the Congo Basin in Africa. These ecosystems play a crucial role in regulating the global climate by absorbing carbon dioxide and producing oxygen. Additionally, rainforests provide essential resources such as timber, medicinal plants, and food. However, they face significant threats from deforestation and climate change, which endanger their biodiversity.