Yes they do. They will eat anything.. Pipe, metal, they can eat through just about anything!
I have several mice and several rats. One of the mother mice recently died and her babies had just weened, and I put them in with one of my rats, who lives alone due to the fact she has some nerve issues and can't be in high places in case she falls off. (My rat is about a year old), and I put the babies (about 6 weeks old) in with her, and two new baby rats I rescued the same day, and they all live together. The baby mice act just like the rats and clean the rats, and the rats clean them like they're baby rats.
Don't try to stick two adults of different species together, and don't touch a rat, then touch pinky mice, because the mom will kill the pinky mice, but no, PET RATS do not eat PET MICE. I can't vouch for wild ones. Fancy rats will generally not eat fancy mice, unless you have a particularly mean or territorial rat on your hands. Do not put mice with in-tact males. They're best with females.
Rats often eat mice but a wild rat can kill a mice.Rats bite everything!
Yes they do. I found one in my mom's closet and it had gone into the wires and died. It stunk badly!!! But I love rats personally so I found that sad. But yes they do.
I am going to get a Rat and my sister is getting mice. I am not sure if pet Rats eat Pet Mice so Lets hope not