The whale in the parking lot

A chalk outline of a whale drawn on the parking lot behind the building where I work. Somebody from physical plant tried to erase it but they stopped when told that the drawing is for a class. I think it is a blue whale. The whale drawing appears every spring semester. The rain will wash it away but it not only gives the students taking the class a sense of scale of a whale but others who walk in that parking lot also learn something.