Sidewinder Rattlesnake - The Sidewinder Rattlesnake can be identified by raised scales over its eyes that have a horn-like appearance. The Sidewinder's bite is usually not deadly to humans, but is still very poisonous and capable of making people very ill.
Texas Banded Gecko - The Texas Banded Gecko is a small lizard that inhabits parts of New Mexico and Mexico along the Rio Grande River Valley. It has small, yellow bands across its body, giving it its name.
Texas Horned Lizard - The Texas Horned Lizard lives throughout the Southwestern United States from Louisiana and Oklahoma down into Mexico. They have two longer spiny "horns" on the back of their heads, and several smaller ones on their faces.