Example file:
Circle Fitting
https://ieatbugsforbreakfast.wordpress.com/2011/12/01/multiple-local-optima/
Some David´s galapagos projects:
http://www.aaschool.ac.uk/VIDEO/lecture.php?ID=1212
Cool video with more explanations:
https://www.youtube.com/watch?v=4QqkxT1XeNw