How does the strawberry develops?

Here is a picture sequence of how does a strawberry develops from it's flower stage to it's "fruit" stage.
That's right, quotation marks. Strawberries are not fruits. The real fruits are the tiny little seeds arroud it, the achenes, a dry fruit. The strawberry (red part) grows from the receptacle expansion, and can be promoted by some plant hormones like giberelic acid (produced by the achenes). Here are some pics that I took and found interesting.