"In the core area there have been recorded 34 species of frogs and toads, 3 worm-salamanders, 15 lizards, 10 snakes, yellow-footed tortoise (VU) which lives there year-round, 6 freshwater turtles including six tubercled river turtle (VU), yellow-spotted river turtle (VU) and South American river turtle and at least two caimans, black and yellow."