Answer:
I go around a yard but do not move. What am I?
My keepers feed me colored balls. With sticks they store on my den walls. Sometimes I store them in my pouch. Sometimes deep in my belly; ouch!
I save lives on the ground and in the air
Men seize me from my home tear apart my flesh drink the sweet blood then cast my skin aside.
I am brown and sticky
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.