Venomous snakes - series
This is a rattlesnake.
The top row displays the defining features of a rattlesnake. From left to right, a rattle on the tail, a triangular head, and hinged fangs.
One way to determine if a snake is venomous is to look at its underbelly. If there is a single row of scales leading to the anal plate, the snake is venomous.
Last reviewed 1/8/2012 by Jacob L. Heller, MD, MHA, Emergency Medicine, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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