response: Have you ever heard of ''Dog's bread''? it is made out of bran.
history: My dog loves dog biscuits I think he is obsessed with them Nice. They tend to be dry and hard, does it like it this way? Oh no there are some that are soft and chewy, made my milk bone Cool, do you buy the ones sold in a flat bone-shape? No, but I have seen those. They even have some softy ones made from duck I have never heard of those, but I have heard that manufacturers claim dry and hard biscuits help clean the dog's teeth. Yeah there are some made specifically for that
knowledge: ''Dog's bread'', made from bran, has been mentioned since at least Roman times.