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Safety / Survival / Army Field Manuals / AFM 3-05.70

Appendix E

DESCRIPTIONS OF VENOMOUS SNAKES

COLUBRIDAE

E-31. The colubridae is the largest group of snakes worldwide. In this family there are species that are rear-fanged; however, most are completely harmless to man. They have a venom-producing gland and enlarged, grooved rear fangs that allow venom to flow into the wound. The inefficient venom apparatus and the specialized venom is effective on cold-blooded animals (such as frogs and lizards) but not considered a threat to human life. However, the boomslang and the twig snake of Africa have caused human deaths.

LIZARDS

E-32. There is little to fear from lizards as long as you follow the same precautions as for avoiding snakebite. There are only two poisonous lizards: the Gila monster and the Mexican beaded lizard. The venom of both these lizards is neurotoxic. The two lizards are in the same family, and both are slow moving with a docile nature.

E-33. The komodo dragon (Varanus komodoensis), although not poisonous, can be dangerous due to its large size. These lizards can reach lengths of 3 meters (10 feet) and weigh over 115 kilograms (253 pounds). Do not try to capture this lizard.



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