Feline behavior information from Gwen Bohnenkamp's book "From the Cats Point of View".

To fully understand your cat's behavior and properly solve the issue of problem scratching, I recommend reading this article in its entirety.

The most common reason a cat stops using its litterbox is because the box is dirty - from the cat's viewpoint, not yours.

Article on how to sooth the savage beast.

This giude is for cat owners who would like a better relationship with their cat. Covers topics like behavior training, introducing a dog, early training, and cat characteristics.

Ankle biting and sudden attacks are most often associated with predatory aggression.

Scratching objects to mark them is a normal cat behavior. This behavior appears to help in claw sharpening and to provide some stretching exercise for the cat.

Aggression between cats is a difficult problem. In some cases it seems almost unresolvable. I have several clients who have finally just resorted to keeping their cats in separate parts of the house, all the time.

Feline aggression may be directed towards people, cats, or other animals. Because cat social behavior is less structured than dog social behavior, categories of aggression are not as distinct.

Before tackling your cat's aggressive behavior, discuss your concerns with a veterinarian. Aggression can be caused by seizures or systemic disease including thyroid disease and heart disease. Professional advice from veterinarians and pet trainers can also determine if your cat's behavior should be managed with medication in addition to training.

A common concern among potential cat owners is - how do I get Fluffy to scratch at his scratching post and not the sofa I was lucky. I had two bright kittens who showed me how it's done. Here's what I've learned.