The most common aggressive puppy behaviour warning signs include snarling, growling, mounting, snapping, nipping, lip curling, lunging, dominant body language/play, challenging stance, dead-eye stare, aggressive barking, possessiveness, and persistent biting/mouthing.
An important sign that a puppy may be is that he shows an unwillingness to explore a new environment. Constant panting, yawning, excessive lip licking, and vocalization may be present. If you place a puppy on the floor and all he wants to do is hide under a chair or behind his owners' legs, a problem exists.
Besides stealing and playing keep-away, common puppy behavior problems include lack of house-training, hyperactivity, nipping, chewing, eating feces and getting sick in the car. Lack of house-training usually stems from giving the puppy too much freedom too quickly.
Although accurate temperament testing is not possible at a very young age, you can get a general assessment of your pup's personality. Does he seem interested in play? Does he sniff or nudge your hand when you hold it out and welcome your touch? Is he comfortable around people or does he cower when you approach?
A puppy's environment and socialization until adulthood have big impact. But temperament testing is a valuable tool that can be helpful in placing puppies in homes where they will thrive. Michele said the ideal age to conduct temperament testing is 7 ½ weeks.
When Puppies Mature and Settle Down. Puppies typically develop the emotional maturity and temperament of an adult dog between twelve and eighteen months of age, although they may continue to occasionally exhibit puppy behavior like chewing and nipping until they're about two years old.
Like territorial behavior, protective aggression usually appears as puppies mature into an adolescence or adulthood, at one to three years of age. Many dogs show the tendency to guard their possessions from others, whether they need to or not.
Most puppy mouthing is normal behavior. However, some puppies bite out of fear or frustration, and this type of biting can signal problems with future aggression. Puppies sometimes have temper tantrums. Usually tantrums happen when you're making a puppy do something he doesn't like.
Older puppy aggression
Most puppies are through the worst of the biting phase by about four months old. After about six months of age, some puppies begin to show signs of fear aggression. This means that they may growl or snap at strangers who approach or try to touch them.
A temperament test may include an initial interview with the pet owner and pet, followed by introducing the dog into a play area with the other dogs to evaluate their behavior, body language, personality with other dogs, etc. The test involves looking for any aggressive behavior toward the other dogs.
Perhaps the biggest challenge will be getting every member of the household to follow the same rules and routines with a puppy. The only way dogs really learn rules is through consistency. It is easy for a puppy to never quite get the training down when different family members treat the puppy differently.
Exactly how your puppy plays rough will depend on the dog, but there are some common behaviors that you can look out for: Biting or nipping at your hand/extremities. Growling when you try to play with them or when you attempt to take their toy away. Having a stiff posture.
Lunging and biting are typical puppy behaviors that can happen due to excitement, boredom, frustration or even because the puppy is tired and needs a nap. It is most often just playful, affectionate, attention-seeking behavior, which means the pup has no malicious intent.
The “Witching Hour”
Many owners find that 7 a.m. and 7 p.m. bring out the worst in their puppies! If you know that a particular time of day prompts crazy biting, do your best to manage/prevent the behaviour and engage your puppy otherwise.
It is normal for puppies to behave this way; your very young girl is just trying to get you to play. She's obnoxious at the moment, but she will grow up. For now, make sure that you initiate play with her several times a day. Don't always wait for her to start things.
Like humans, dogs go through a rebellious “teenager” phase (around 5 months to 18 months). During this time, they'll often test their owners, seeing what they can get away with. Being firm and consistent with your training will help establish boundaries.
For a dog who is acting out of fear or frustration (for example, a dog who is barking and lunging on leash), using the word 'no' to stop the behavior without helping to alleviate their fear or frustration will often lead to an escalation in behavior, such as growling, air snapping, or biting.
In one posture, hold the pup over your head, firmly supporting him with both hands and stare into his eyes (staring is a dominant behavior to the dog). Maintain this position until the pup has been still for 10 seconds. He must be still for that length of time or he hasn't submitted to you.
As with their human owners, dogs' personalities change as they age. But some traits stay the same. All dog lovers know that their pets in older age aren't the same as they were as puppies, but owners often can't pinpoint the exact personality changes brought on by the passage of time.
Most puppies start to calm down as they approach their maturity age, which is usually around 12 months, but for larger breeds it can be more likely to occur between 18 months and 2 years.
Undesirable behaviours such as barking, chewing, counter surfing, house-soiling and jumping up commonly begin to occur at around 3-6 months of age. Your puppy will not grow out of these behaviours. On the contrary, it is more likely that these behaviours will worsen if not addressed early on.