Although we like to think of scientific inquiry as being completely objective, unfortunately there have been times in the past that it has been biased by our human desires. Whether it is for fame, fortune, or simply to mislead, some people will occasionally go to great lengths to deceive the world. You’ll probably notice, however, that not all of these are malicious cases of deception. Some are in fact quite amusing and meant to be little more than practical jokes. Either way though, these are the 25 greatest scientific hoaxes in history.