Quantcast
issue
Read articles, including Science News stories written for ages 9-14, on the SNK website.

For most mammals, puberty is marked by an increase in aggression. As animals reach reproductive age, they often have to establish themselves in their herd or social group. In species where males compete for access to females, signs of aggressive behavior can begin at a young age. Credit: John Waters / Nature Picture Library

Follow Us
blogs & columns
multimedia
Not to miss
bookshelf