Many popular accounts of the Miami Circle site proposed that the circle feature, carved into the limestone at the mouth of the Miami River, was the center of ritual activity. The remains of a shark, sea turtle and bottlenose dolphin buried at the site were thought to represent ritual interments and one fanciful newspaper account speculated that the basin features comprising the site were animal effigies. This paper considers the animal interments from the Circle and elsewhere in southern Florida and explores what they may represent, including that they may be evidence of animal sacrifice. We also consider the animal interments in light of research on Native American beliefs about the nature of human and animal souls.