Most cats have their own way of telling you when they're hungry, and they most definitely don't need to ask. These two, however, seem to have picked up on some teaching from their human to ring a bell when hungry!

It no doubt took some time and patience on the owner's part to get these two clever felines to cooperate, but it seems like the promise of food was more than enough motivation to get them up to speed. The only problem seems to be that they constantly ring the bell--even while the other is still eating!

By - grape Japan editorial staff.