In the morning, my shadow is long, by noon, it’s short and strong. What am I?

I’ve a trunk with no trees Ivory with no keys I’m the thing in the room that needs to be addressed, please.

On one hand, I'm a sea animal that is called a lion, though I'm not scary, And on the other hand, I'm what you do when you tightly close something.

I dig my fingers deep, seeking the most precious of treasures Even the armor clad will buckle under my pressures. Rarely will I bow, not often do I break I tend not to drown when thrown in a lake. You compare admirable qualities to many of my kin, You attribute to my child your ultimate sin

Many plot o'lands Or servers on stands I produce the needs and the wants. Bits or bots, food either exotic or bland.