Lesser cerastes Vipera (Cerastes vipera) on sand, Mauritania

coluber vipera aspis vipera vipera aegyptiaca echidna atricauda vipera avicennae cerastes vipera cerastes viperidae serpentes squamata lepidosauria reptilia vertebrata coluber vipera aspis vipera vipera aegyptiaca echidna atricauda vipera avicennae cerastes vipera sand desert mauritania adult alone sand crawl venemous species high angle view overview sahara cerastes activity track least concern (iucn) lc february lesser cerastes vipera (cerastes vipera) sinuosity nobody sand deserts ergs erg adults single lonely only solo one lone sands crawling crawled venemous venomous high angle shot overhead shots overhead shot overhead sight overhead sights overhead view overhead views overviews global sight global sights full length activity tracks least concern species sinuosities sinuous winding windings with nobody desert area great maghreb north africa africa stage of development individual enumeration mineral matter matter (substance) locomotion motion risky species species particularity species shot viperidae serpentes squamata lepidosauria reptilia vertebrata trace physical phenomenon low risk (iucn) lr iucn red list of threatened species viper with horns (cerastes sp) adders viper snake reptile wild animal shape