knew enough not to mistake it for a snake. And I also knew that snakes were not as big as logs. This one, as I watched it more closely, was perhaps forty feet long and three feet thick. I shifted to look at two macaws flying and squawking overhead. Then I looked back at the log. It was closer to us now. Strange, I thought, the log is floating toward the bank, perpendicular to the current. Then as it got closer, I saw that it really was undulating. Suddenly it came straight toward my end of the boat. This was no log. This was the largest anaconda I had ever seen. Its head
