Many people become very interested in hybridism simply because of the fact that two species are blending together to create an entirely new species. This often ends up with interesting results, that simply fascinate people. Many cryptozoologists believe that there are thousands of undiscovered hybrids roaming the earth. Many cryptozoological monsters are believed to be hybrids. For example one theory about the origin of Bigfoot, or Sasquatch, is that if they do exist, they could be hybrids of men and apes.