News Animals Why do some lizards and snakes have horns? The protuberances might camouflage static hunters but be costly for active ones Lizard and snake horns — like those of the Saharan horned viper (Cerastes cerastes) — may be less likely to evolve in more active lizard and snake species because they may make the reptiles easier to spot by both predators and prey. Paul Starosta/Getty Images Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Jake Buehler December 12, 2023 at 2:00 pm Horns aren’t just for rhinos and cattle.