Sadly I can't recall the name of the book I read as a kid, but it was all about dangerous animals. The kind of stuff pre-teen boys are super into.
Well, I was hoping for adventure stories, but the book ended up being a dry and technical description of incidents. Yet, still interesting. One horror story I recall was of Orcas harassing an Inuit family in their canoe. And them having to throw one of their kids overboard to get away.
No idea idea if the stories in the book were real or made up. But just based on the dry and technical descriptions, part of me has always suspected they might have been real.