MONTREAL — Are toddlers’ tantrums and aggression the result of nature or nurture? A study out of Canada says genes might have more to do with it than previously thought. Researchers from University of ...

Jessica D. Ayers does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Former President Joe Biden has been diagnosed with an "aggressive" form of prostate cancer that has spread to his bones. But what does it mean for this type of cancer to be called aggressive? As a ...

Is aggression part of our primate nature, wired into our systems because it helps us survive, or do we learn it from such seemingly innocent occupations as watching cartoons and wrestling matches on ...