Do beans need bees to pollinate?

Duckduckgo [how do beans pollinate]

Garden Simply.

"Daddy, is this going to be the birds and the bees?"

     "No, Son. This is going to be about a subject we don't talk about."

Beans f themselves.

And so far as evolution goes, that's not very advanced.

Beans are self-pollinating and rarely pollinated by insects. Bean flowers release pollen the night before the flowers open. The next day, as the flowers open, the anthers brush against the stigma and pollination occurs.

W-h-a-a-a-t?

I can't even visualize that.

Let's see, the pollen is released inside the flower bud before the flower opens. Then when it opens the anthers rub against the mess inside. Do I have that right? Could you draw me a picture?

Oh. Apparently the thing in the middle grows past the thing surrounding it. The picture is showing when they both stay short then it works. 

So now I know what's going on inside there and I can stop worrying about not having any bees around here.