Horned frog

Cincinnati Zoo

The "horn" of the ornate horned frog (Ceratophrys ornata) is a curious triangular prolongation of the edge of the upper eyelid. It is not hard or sharp, as it is only a flap of skin, but perhaps it makes the wide head appear even wider and therefore less acceptable to the forest creatures that would normally dine on these frogs.


  • Where to see them: Eastern Brazil and eastern Argentina
  • Lifespan: 10 years in captivity
  • Length: 4.5 to 6.5 inches
  • Habitat: Tropical rainforest
  • Diet: Snakes, lizards, mice, and other vertebrates
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