Humans aren’t the only animals with hot tempers. In 2016, ecologist Kristen Cecala and a colleague watched black-bellied salamanders (Desmognathus amphileucus) from Appalachian streams lunge at one ...

A sample of 4,013 participants from 24 countries were asked about aggression toward siblings and non-sibs, to determine ...

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 ...