western fence lizard adult male plays dead to stay alive

acting adult alameda alert alive animal belly blue bluebelly bright california cautious coast common county cute danger dead defense details faking fauna fear fence freeze giving instinct iridescent lifeless lizard male mechanism name nature occidentalis playing plays pretending ranges reptile scales sceloporus selfpreservation side spiny startled stay still survival tactic turquoise underbelly upside usa ventral western wild wildlife yellow