State of Wonder by Ann Patchett (2011)
From page one, this story of a big pharmaceutical company plunging into the Amazon to investigate the development of drugs and, incidentally, the death of one of its doctors intrigued me. The story gathers momentum as the scene moves from Minnesota to the jungles of the Amazon. The characters are often flawed but so human. For a real thriller offering so much to think about, try Ann Patchett.
To read an expert from the book check this article from NPR here.