Not so much the nature side of things, but the human take on nature was intriguing.
- his overwhelming love for the animals, to the point of fake
- the practical "well, you could wait until he got eaten" viewpoint
- the adolation of all he did for them
- the Inuits (?? no, others, from Alaska), who basically saw his involvement with the bears as infringement. Plus, it might make the bears trust people. Utterly wrong.