Articles relating to the mokele-mbembe, the tales and research about it, and its depictions. It is a mythical water-dwelling entity that is believed to exist in the Congo River Basin. Variously described as a living creature or a spirit, mokele-mbembe's descriptions vary widely based on conflicting purported eyewitness reports, but it is often described as a large quadrupedal herbivore with smooth skin, a long neck, and a single tooth or horn, much like the extinct species sauropods. Most mainstream experts believe that mokele-mbembe, as reported by Congolese natives, was probably inspired by the black rhinoceros, which once thrived in the region.