Aggression between Cats
 
Bringing a new cat into a home where there is already a cat, or cats, can cause some problems -- both passive and active aggression. Females will usually live peaceably with each other. However, if aggression and conflict rear their ugly heads in a household of formerly nonviolent female cats, it’s probably because one has reached the status of social maturity, which occurs at around four years of age. In addition, non-neutered males will aggressively compete for mates.
 
When the cat is introduced to your other pets, the most typical behavior is a ...read more