Sounds like an interesting book but I'm not that much of a reading type guy. I can page through a magazine and read some articles that catch my eye.
However, with that being said, I personally have come across several of those man eaters in my younger days when I did some carousing in bars! You had to be really careful as some of those habitats were pretty dangerous. But I was getting pretty good at guessing their age, sex (very important) and size also.