Answer:
What always ends everything?
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 go up but never come down. What am I?
I am a small paradise surrounded by dryness and heat. What am I?
I am an English word that is as long as I am valued.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.