They may live in the same hutch and get on fine and no one could be hurt. For many years I kept my bunnys with my male guineas. BUT I would never do it now.
1. The RSPCA do not recommend it, they recommend pigs should have company of their own kind. 'Companionship - to be with other guinea pigs. The widespread practice of keeping guinea pigs and rabbits together is not recommended.' taken from the RSPCA website. You are legally obliged under the Animal Welfare Act too,: 'for any need to be housed with or apart from, other animals'.
2. The nutritional needs of both species are different, guineas need greens at least twice daily for Vit C intake. Buns need more Vit D therefore the Vit D in their dry mix is higher. Dry mix is not always a good idea when it comes to feeding Buns they can overweight leading to other problems, guineas are fine on pellets.
3. Buns can harbour a germ that has no effect on them but is fatal for piggies.
4. It goes without saying that guinea is always at risk from those powerful back legs however many hidey holes there are, if he's in the way when Bunny Binkies the Hidey hole isn't any use
5. Guineas are a different species and are happier with their own kind. I have had a lot of guineas into rescue that are living with Buns and split after the initial night together and find them a friend. Finding a friend doesn't happen overnight always but when they are settled with their new friend they have always been sooo much happier
Just in case you're in any doubt LOL!
