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You may need to go back to your biology textbook to help you with this bewildering array of reptiles and amphibians. The unused letters will spell out three TV naturalists. ADDER ANACONDA AXOLOTL CAYMAN CHAMELEON CHELONIAN COBRA DRACO ELAPS GALAPAGO GALLIWASP GECKO HOGNOSE IGUANA JARARACA KRAIT MAMBA MOLOCH MONITOR MUGGER NAGA PYTHON SAND SNAKE SEA SNAKE