The creatures behind repeated sightings of the fabled Loch Ness Monster may be giant eels, according to scientists. Researchers from New Zealand have tried to catalogue all living species in the loch by extracting DNA from water samples. Following analysis, the scientists have ruled out the presence of large animals said to be behind reports of a monster. No evidence of a prehistoric marine reptile called a plesiosaur or a large fish such as a sturgeon were found. Catfish and suggestions that a wandering Greenland shark were behind the sightings were also discounted. The aim of the research was not...