Cats are social animals
and can develop close bonds with other cats in the same household. However, whether they will protect each other depends on several factors, including their individual personalities, socialization experiences, and past interactions. Some cats may be more protective of their feline housemates, while others may be more independent and less interested in interacting with them.
Regarding aggression between cats in the same household
, there can be several reasons why a cat may become aggressive towards another cat for seemingly no reason. Some common reasons include territorial disputes, resource guarding (such as food, water, or litter box), fear or anxiety, illness, and redirected aggression (when a cat is agitated by something else and takes it out on another cat). It is important to observe the cats' behavior and try to identify any triggers or underlying issues that may be causing the aggression. If the aggression continues or escalates, it is recommended to consult with a veterinarian or animal behaviorist for further guidance