Cats are territorial, and moving to a new environment can be stressful and confusing. This can lead to conflict, such as hissing, even between previously friendly cats.
Possible reasons include:
- Territory: Cats may feel threatened by the other cat in the new environment.
- Competition: Competition for food, water, or attention can cause conflict.
- Stress: Moving can make cats irritable and more likely to hiss.
- Unfamiliarity: Cats may need weeks or months to get to know each other.
- Previous negative experiences: Past conflicts can increase hissing.
- Medical problems: Health issues can contribute to aggression.
Stay calm and avoid punishing the cats. Provide plenty of resources, create a safe environment, and give them time to adjust.