Here's the first of three videos on how to make a life-size articulated wood crocodile that is truly spectacular! Jeff Sloan specializes in this type of woodwork, and gives a great step-by-step. I recommend watching through all three - or at least sneaking a peek at the finished animal. Had it been snaking down the river, people might have seriously wondered!
Link to his site: http://wobblywood.co.uk/home.html