Tree Monitor, Khlong Saeng, Thailand

Tree monitors are very big lizards — three feet long or more. I spotted this one while on a boat in Khlong Saeng in Thailand. The dead trees were protruding from the water in this permanently flooded region. Nikon D500 with Nikkor 200-400mm lens (at 350mm) ISO 800, f/4 at 1/1250th of a second.