Lizards are the main predators of arthropods, including chemical defenses such as spiders. We have previously found two lizard species (Elgaria Multicarinata,, Scropora Western) There are different degrees to resist black widow spider Venom (BWSV). Since these lizards are unreliable, resistance can represent independent custom victims, or to be a deep field of lizards in lizards. To find out if BWSV resistance is an ancestral acquirer, we have reviewed BWSV resistance at the organism level and tissue tissueColeonyx variegatus,, Takydromus sexlineatus,, Iguana Iiguana) represents a wide range of phylogenetic, geographically, and ecological scope. We mapped the results of the lizard in the phylogeny lizard and used a murbal outgroup for comparison. To see if lizards can resist the spectrum resistance against many threads, we also count the resistance to Arizona Bark Scorpion Venom (ABSV) to E. Multicarinata and S.. Sprint tests reveal that insect species (C. Variegated,, T. sexlineatus) not more affected by BWSV, while plant plants (I. Iguana) shows severe reduced performance. History analysis indicates a little in moderate muscle injury to insect species, but many damage to I. Iguana. In comparison, sprint tests E. Multicarinata and S. It shows lizards that can easily get to ABSV. Thus, lizards are not broadly in different threads, but there is a level of resistance to BWSV compared to mammals, with resistance to others. Thus, interactions of ecological widespread spiders appear to send patterns of venom resistance across the phylogeny lizard.
Thill, VL, Tlandas, MB, Moniz, HA et al. Ancient enemies? Patterns of resisting widow spider venom with lizards. Evol biol (2025). https://doi.org/10.1007/s11692-025-09650-1
