Gerbil antics
I knew hampsters stored food in their cheeks, but apparently gerbils store it too. I put my gerbils in the little fence ting we bought for them to run around in, and there was definitely no food in there when I put the gerbils in. Suddenly, there was food under one of them and then they were eating. I looked like the food had been coughed up...because there was not a bump in their cheeks.