Lake Malawi, also known as Lake Nyasa, is one of the Great Rift Valley lakes located in East Africa. It is the ninth largest lake in the world by volume and the third largest in Africa. The lake is known for its clear waters, diverse fish species, and unique biodiversity. Lake Malawi is a hotspot for research in the fields of evolutionary biology, ecology, and biogeography due to its high levels of species diversity and endemism. The lake is home to over 1000 species of cichlid fish, with most of them being endemic to the lake. This high level of diversity and specialization has made Lake Malawi an important location for studying speciation and adaptive radiation. Research in Lake Malawi has also focused on threats to the ecosystem, such as overfishing, habitat destruction, and pollution. Conservation efforts have been implemented to protect the biodiversity of the lake and its surrounding areas. Overall, Lake Malawi is a significant research area for studying evolutionary processes, ecological dynamics, and conservation strategies in freshwater ecosystems.