January 18, 2009
The South of the United States is the home of many kinds of snakes and lizards that pose very little threat to human health. The majority of Texas snakes are nonvenomous or very little poisonous for their hunt, but in case of a human injury there would basically be no problems. Two exceptions need specification: the groups and subgroups known as coral snakes and pit vipers. In recent years there have been less snake bites not only in Texas but everywhere in the United States because of a higher awareness of the fact that snakes are sharing their habitat with us. Thus, people should understand that a snake will only bite when it feels threatened and the resulting envenomation is the result of a pure defensive act.
Pit vipers are the most numerous poisonous Texas snakes: they include sub-groups like the rattlesnakes, copperheads and cottonmouths. Each group has individual traits that render the specimens easy to identify and thus to avoid. One will recognize Texas snakes like the copperheads by the red-brown cross lines in their body patterns, while cottonmouths will stand out by the shades of green, solid black and olive. When threatened cottonmouths will open their mouths and hiss in a menacing way. The white tissue inside of their mouths is the features that gave the name of cottonmouth to the species.
Finally, the rattlesnake makes the most noise from all Texas snakes; as the name points out, this snake rattles its tail telling aggressors to keep the distance. If you don't come too near or accidentally step on them, rattlesnakes will never get closer to you in order to attack. The only pit viper that shows no warning message is the copperhead that attacks whenever it senses danger. Hence from all the Texas snakes, the copperhead gets its reputation as the trickiest and most unpredictable. Then, we should mention coral snakes as one other group living in the arid parts of the American south.
Corals are related with the Asian and African cobra, and though the majority of venomous snakes have elliptical pupils, corals distinguish themselves by their roundness. These Texas snakes are slender usually less than two feet long with a pattern consisting of black, yellow and red rings alternated. Even if there are other harmless Texas snakes with similar coloring, red is almost never present. In case one chooses South Texas woodlands as a travel destination, one should keep in mind that snake encounters are possible in canyons as well as on plains.

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