No. Not at all.
You can feed them both guinea pig food. Don't feed the guinea pig the rabbit food or it will be sick. Rabbits are ok on guinea pig food.
There are several reasons why you shouldnt keep guinea pigs and rabbits together, the rabbits are usually bigger than the guinea pig so there is some danger of the guinea pig being injured and although its rare, guinea pigs and rabbits have been known to mate which can harm the guinea pig and even the rabbit.
Yes, they are related
Rabbits are lagomorphs, not rodents!
Well it depends on what guinea pig food it is, ones with fruits, nuts, colored bits, ect. Are not even good for guinea pigs, so they are not good for rabbits. Timothy based good quality guinea pig pellets, however, are fine for rabbits.
Don't keep rabbits and guinea pigs together. Rabbits can break guinea pig's spines easily (we assume by accident, but those wascally wabbits...), killing them.
NO!!! guinea pigs and rabbits can NEVER live together, the rabbit could kick the guinea pig and end up killing him!!
Definitely a guinea pig. Rabbits have very strong hind legs and tend to kick hard. They are also a lot bigger.
Actually rabbits an guinea pigs are fine together. But maybe the female guinea pig is felling lonely being the only kind in the cage. Or maybe its because the rabbit just doesn't like the guinea pig. If it's possible you can try getting another female guinea pig or separating the the guinea pig and rabbits.
No, I doubt it. I do have a friend who has a rabbit and guinea pig in the same hutch but guinea pigs are more friendly to there own species; especially if they're from the same litter.
Guinea pig
No. Guinea pigs have very fine skeletons and rabbits have very strong legs. A kick from a rabbit can easily break a guinea pig's bones.