Dobhar-chús are vicious, man-eating creatures of Irish legend said to haunt lakes and waterways. It is described as a large aquatic beast that looks like a cross between an otter and a crocodile, with some traits of a dog or a pliosaur. It enjoys eating human flesh, and regularly attacks people. One story tells of a man who was attacked by a Dobhar-chú and killed it with a knife. It's mate then hunted him down and, after a long battle on a lake, the man finally finished this one off as well.