A stone shaped as en egg

I found a small stone shaped as an egg when I was walking along the shore line by our summer house today. I am not a big thinker, but when I placed the stone next to an egg, I was thinking this stone must have been shaped by rolling on the botton of the sea or up and down the water egde by the waves since long before a hen was born in this world, it was something to think about. A nice evening by the sea. Shot an extra to show you.