Our expedition clients have spent the last three nights hiking the trails around the field station here in the Peruvian rainforest. Those nights have been very productive, in terms of herps and other critters seen and experienced. But long hikes in the heat and humidity take their toll, and afterwards, when folks close their eyes for sleep, the afterimages of waving flashlight beams play against the back of their eyelids. It’s time to change things up – time to take a night off, give tired eyes and legs a rest. Time for the Boa Boat. The sign-up sheet is over by the icebox, and we leave a half hour after dark. Wear long sleeves, bring your bug spray and rain…