Dogs are man's best friend, but they are still animals, and sometimes their wolf-like behavior comes out in aggression. Some kinds of canine aggression to be aware of are resource guarding aggression, ...

Chimpanzees have a reputation for being aggressive, while bonobos are often seen as their peaceful counterparts. This ...

Aggressive dogs bite people more than 4.5 million times each year, according to the American Veterinary Medical Assocation. About 20 percent of those dog bites need medical attention. If you're ...

What causes some individuals to act out violently when provoked, while others turn the other cheek? For decades, psychologists, criminologists, and sociologists (among others) have tried to understand ...

Erinn Acland has previously received funding from the Quebec Network on Suicide, Mood Disorders and Related Disorders, NSERC, and the University of Toronto Centre for the Study of Pain. Joanna Peplak ...