Is there any truth to non venomous snakes have more blunt bodies buy the tail and harmless snakes will have longer more tapered tails? I have heard the eye thing as well where a venomous snake will have a slit and non venomous will have a round pupil? Truth?
Is there any truth to non venomous snakes have more blunt bodies buy the tail and harmless snakes will have longer more tapered tails? I have heard the eye thing as well where a venomous snake will have a slit and non venomous will have a round pupil? Truth?
Tail thing, no.
Eyes, yes.
In Texas, all snakes with round pupils will be non-venomous, except for the coral snake. Coral snakes also have round pupils, but they are non-aggressive and should be easy to distinguish.
Copperheads, rattlesnakes, and cottonmouths have slit pupils, like a cat.
There's another key to an ID of a poisonous snake, although for dead ones IMO, as I'm not gonna pick one up to check his belly scales behind the azzhole. Pit vipers have a single scale behind the vent--not a double-scale.
There are two categories of venomous snakes in Louisiana - the coral snakes and the pitvipers (copperhead, cottonmouth and rattlesnakes). The distinguishing marks of coral snakes are described under "Coral Snake Mimics". All pitvipers have vertically elliptic pupils, a loreal pit located between the eye and nostril, and a single row of scutes, like those of the belly, beneath the tail. Pitvipers are relatively stout, whereas only a few non-venomous snakes have a similar physical aspect. Our non-vipers have round pupils, lack a loreal pit, and have paired scales under the tail. See also under "Small garden variety snakes" and "Water snakes" for additional details. The shape of a snake's head DOES NOT indicate whether or not it is venomous. All snakes are capable of changing the shape of their head to some degree because their lower jaws are attached to the skull by an elastic ligament. Through muscular action, most snakes can flare their rear jaws to produce a triangular shape to the head, which is used as a defensive posture. The presence of venom glands at the side of the cranium in pitvipers causes the shape of the head to remain somewhat triangular in shape.
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