I just adopted two male (Neutered) cats from my local shelter. Punkin is a DSH age 3 1/2, Whitey is a DMH age 8. They were surrendered two months ago from a man who passed away, and lived together in an apartment with this man prior to their surrendering. They were reported to have got along just fine. They were kept in the same cage at the shelter, and got along just fine as well. Now I have them home, and they are attacking and fighting with each other regularly. I want to keep them both for I love them dearly just after three days of owning them. What can I do? Thank you for any suggestions for I DON'T want to bring either of them back, and I am afraid someone will get hurt.