Grizzly bears are known for their aggression, and it can be a scary sight. Read here to learn why and how they fight each other.

Life for a young grizzly bear is shaped by competition from the very beginning. Observations in the wild show that more than half of cubs do not survive their first year, and one of the leading causes ...

ODATE, Japan — Before students can come out to play at his school, Yoji Hikage has to give the all clear. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive ...