The Yellow Boa or Boa Coridyu is native to swamps, mainly from southern Brazil to northern Argentina. Buenos Aires Zoo. In context at www.dixpix.ca/Amazon/fauna/snakes/index.html
The famous Green Anaconda is the world's heaviest snake and the second longest. It is found in swamps and wetlands of the Amazon Basin. Serpentario Armero, Leticia, Colombia. In context at www.dixpix.ca/Amazon/fauna/snakes/index.html