Explanation: Cats are territorial animals and can become jealous when their territory is threatened. This can happen when a new person or animal enters the household, or even when an existing family member starts to receive more attention. Jealousy can manifest itself in a variety of ways, such as hissing, scratching, or spraying urine. To prevent jealousy, it's important to make sure that your cat is getting enough attention and that any changes to the household are introduced slowly and carefully.