Avoid situations that you know make a cat aggressive. Separate cats that act aggressively toward each other and reintroduce slowly with positive reinforcement, as described in the Territorial Aggression section. Food treats are excellent positive enforcers of non-aggressive behavior.
In kittens, most aggression is caused by fear or curiosity. In older cats, there may be other reasons for cat aggression and attacks, such as redirected aggression, or when a cat lashes out at its owner because it senses something is wrong.
The reason kittens bite us is simple: they're natural predators and they want to practice their attack on a moving object. In fact, kittens are biologically wired to attack an object that moves, so it's important to teach them how to play with toys--not fingers or feet--from a young age.
From 6 months to a year is what could be called the “teen years” as the cat moves toward its sexual maturity. You may find a male or female trying to claim territory by marking, or with assertive behaviors such as aggression, scratching, or biting.
Understanding the Kitty 'Terrible Two's'
Between the age of 6 months and 2 years, your kitten will be reaching physical and sexual maturity. They will grow out of being a pure bundle of energy but, like human teenagers, they will be learning and exploring more of the world around them.
A simple training method involves praising and petting your kitten when it leaps onto acceptable surfaces while scolding and removing it from unacceptable surfaces. The spray bottle can help train your kitten to stay off specific surfaces.
If you are doing all of the above and your kitten consistently nips or pounces on you, simply walk away and end the interaction when they show this behavior. With consistency, the kitten will learn that nipping/pouncing leads to a loss of attention and it's not in their self-interest to do this behavior.
Never hit or yell at your cat for biting.
This will only reinforce in her mind that hands cause pain or that petting isn't enjoyable and she will become even less tolerant of handling. She could also become afraid of you.
Aggressive cats can be dangerous, so never intervene while your cat acts upset. If cats are tussling, make a brief loud noise or create another distraction to separate them. Don't approach or touch them until they're ready. It takes two hours for an aggressive cat to calm down.
If you allow them to bite and scratch when they are young, it will be hard to stop them doing it when they are older - although most kittens naturally grow out of the habit between 1 and 2 years old.
Although play is usually more common in kittens, it may persist through adulthood, especially in cats under 2 years of age that have no other feline companions.
While it may be cute as a tiny kitten, once your cat grows up, it's no longer fun to have them bite and attack you. Oftentimes, this behavior comes out during playtime and when your cat is excited.
Research suggests that catnip targets receptors in their brain to make them feel happy. After an initial bout of stimulation and excitement, the herb helps soothe your cat and calm its aggressive behavior.
Spraying cats with water from a squirt bottle is not a reinforcement; it's a punishment. Giving your cat a choice of ways to express his behavioral needs and then rewarding his use of the choice you prefer is the best way to encourage your cat's “good” behavior.
Our team of vets agree that using water bottles to discipline cats isn't the best course of action. According to Dr. Dwight Alleyne, “Spraying cats with water can create a negative association with humans. As a result, they may become more anxious or even aggressive over time.”
"Cats should never be directly punished, verbally or physically. Where some owners will clap their hands, stomp their feet, or jingle coins in a can to teach a dog that their behavior is unacceptable, this method will backfire with a cat," said Hauser.
Single kitten syndrome is the idea that young kittens, when raised with other young kittens and cats and then adopted into a home by themselves, can become aggressive, anxious, stressed, and even develop behavioral issues like inappropriate chewing/scratching and inappropriately using the litterbox.
While exploratory biting and scratching are normal, anything with clear aggression behind it is not. If your kitten is displaying signs of aggression such as hard biting, scratching that draws blood, and dangerous fighting with other kittens, this is abnormal and problematic behavior.
Encourage petting and gentle touch to get them used to interaction from you and others. Introduce other animals slowly – Make sure your kitten is separated from other pets until they are litter box trained and fully vaccinated. Do very slow, supervised introductions and monitor activity closely.
Always train with positive reinforcement. Use “time outs” or a squirt bottle filled with water to distract your kitten from behaviors you want to prevent. If your kitten misbehaves at home or during his first veterinary visit, discuss with your vet ways to in which to work with him.
The sensitive period for a kitten to become comfortable with human handling starts at 4 weeks old and begins to close at 7–8 weeks old. It's very important that different people gently handle and play with kittens starting at 4 weeks old.
9-14 Months: By the time you reach this stage, you officially have an adult cat. After spending so long learning the social etiquette of your home, they will start to mirror you and your actions–like sleeping more during the night and playing during the day.
A cat's temperament, training, and personality are the result of genetics and upbringing, and are generally unaffected by the presence or absence of male hormones. Castration is unlikely to calm an overactive cat or decrease aggression toward people.
Choosing a gender
Males, or toms, can be friendlier than females. Intact male cats "spray" to mark their territory and “howl” for females (this is usually not a problem if you get him neutered). Female cats tend to be more reserved than males but are far less likely to spray.