This was a fascinating read, and I loved the shark descriptions and wildlife portions. That said, the stretch about the human history on the islands was one of the least engaging, and the final stretch of the story was (understandably) much more focused on the humans than the creatures at the island. The epilogue also felt really abrupt for an honestly really big plot reveal. I would have liked more reflection or information about the fallout of the end of the story. 

Anyway, I'm glad I read this, but it also left me wanting to read more about sharks so I'm going to look for something more recent on a similar subject.