Rana nigromaculata, commonly known as the black-spotted pond frog, is a species of frog found primarily in East Asia, particularly in regions of China, Japan, and Korea. This amphibian typically inhabits freshwater environments such as ponds, marshes, and rice fields, where it thrives in warm, humid conditions. The black-spotted pond frog is characterized by its dark green or brown skin, adorned with distinctive black spots. It plays a vital role in its ecosystem by controlling insect populations and serving as prey for various predators. Conservation efforts are important to protect its habitats from pollution and urban development.