howmaygawd
But seriously, I took care of hamsters before and they make me so happy
I began with a pair until they multiplied. I ended up having 47 hamsters. I created an entire hamsterville beneath our staircase before. I asked my dad to build me a high-rise hamster building.
But I sold them all when we needed to move.
Anyhow, that's their food pouch. They stash every thing and anything they can fit in there. And at certain times, those serve as built-in floaters when they're in the water. I know this because I throw them in a basin full of warm water to give them a proper bath (because scented sand can't get rid off the smell that well) and they fill those pouches with air!