Answer:
If a man carried my burden, he would break his back. I am not big but leave silver in my tracks. What am I?
I am wood that is neither hard straight or crooked
My days are numbered.
I follow you all the time and copy your every move but you can't touch me or catch me. What am I?
I am the kind of dog that chases anything red. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.