a sonoran desert sidewinder rattlesnake crotalus cerastes cercobombus

aggression aggressive animal beauty buzz camouflage cerastes cercobombus conservation crawling crotalus danger dangerous deadly desert endangered exotic eye head herpetology horns lethal nature pit poison poisonous predator rare rattle rattler rattlesnake rattling reptile scales serpent side sidewinder slither slithering snake sonoran sound species tail venom venomous viper warning wild wildlife winder zoo zoology