I adopted two seven year old neutered males (brothers from same litter) six months ago, from a widow who could no longer look after them. Both cats gradually adapted to their new home and everything seemed to be going well. They are mostly house cats, who sometimes go out onto a patio to nibble on grass. Neither cat showed any aggression towards each other, often play chasing around the house and sharing night crazies. The dominant cat always seem interested in the "rear end odors' of his brother, by often sniffing at the anus.
Two days ago, he became quite aggressive in his sniffing approach, to the point that the sibling began to hiss and snarl at him, eventually ending with the subordinate cat running away, chased by his dominant brother. Now the subordinate cat stays in hiding... his brother is stalking him when ever he leaves his hidout. The behaviour of the dominant brother is very similar to mating behaviour I've witness when a tom is singleminded on pursuing a female in heat. He has the same look, when eyes are fixed on his brother.
What is the solution? In order to give the subordinate cat some peace, I will seperate them for several hours at a time. One cat in the house, the other on the patio with me.
Two days ago, he became quite aggressive in his sniffing approach, to the point that the sibling began to hiss and snarl at him, eventually ending with the subordinate cat running away, chased by his dominant brother. Now the subordinate cat stays in hiding... his brother is stalking him when ever he leaves his hidout. The behaviour of the dominant brother is very similar to mating behaviour I've witness when a tom is singleminded on pursuing a female in heat. He has the same look, when eyes are fixed on his brother.
What is the solution? In order to give the subordinate cat some peace, I will seperate them for several hours at a time. One cat in the house, the other on the patio with me.