The Colubridae represents
the largest group of snakes worldwide. In this
that are rear-fanged.
Most species in this snake family 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 smaller prey like frogs and lizards)
but are not considered a real threat to humans.
The boomslang and the twig
snake of Africa have,
however, caused human deaths.
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