The sheer size and the jagged teeth of this Black Caiman skull at Calanoa Lodge, Colombian Amazon, defines the apex predator of the Amazon Basin. The species is rare now, however, due to hunting for the leather of its hide. In context at www.dixpix.ca/Amazon/fauna/riverlife/index.html
A Broad-snouted Caiman or Yacare Overo at the Buenos Aires Zoo. Native from eastern Bolivia to Uruguay, it is widely hunted for its leather skin. In context at www.dixpix.ca/Amazon/fauna/riverlife/index.html
A Spectacled Caiman or Caiman de Anteojos snoozing in Lago Pilchicocha of the Sasha Reserve, Ecuador. It is native to much of the Neotropics. In context at www.dixpix.ca/Amazon/fauna/riverlife/index.html