Figure 1 in The Origin and Evolution of the Rattlesnake Rattle: Misdirection, Clarification, Theory, and Progress

Figure 1. The Spider-tailed Viper (Pseudocerastes urarachnoides) from western Iran (in situ). Note the elaborate tail (caudal lure) from which it derives its names (Bostanchi et al., 2006; Fathinia et al., 2015). To watch this species lure birds, go to https://www.youtube.com/ watch?v=VvNrOVf17Es. Photo by Frank Deschandol.