Answer:
When I get closer my tail grows longer, but when I go away my tail leads the way.
I dig out tiny caves and store gold and silver in them. I also build bridges of silver and make crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs my help. Yet many people are afraid to let me help them.
My first is in some but not in all. My second is into but not in tall. My third in little but no in big. My fourth in port but not in pig. My whole is made in nature's way. For clothing, rugs used every day.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not
Often cooked as fillet, this meat comes from an animal that swims underwater.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?