What is lake neuchatel shark?

The Lake Neuchatel shark is a fictional creature which is often believed to exist in Lake Neuchatel in Switzerland. However, there is no scientific evidence to support the existence of such a creature. It has been suggested that the myths surrounding the Lake Neuchatel shark may have originated from the discovery of prehistoric fish fossils in the surrounding area. Some people speculate that it may have been an ancient species of shark that once inhabited the lake, but there is no proof to support this theory either. In short, the Lake Neuchatel shark is a fictional creature with no scientific backing to its existence.