In both, the males tend to be more brightly colored than the females: Only moving insects are seen as food, and sight of these will cause the lizard to become excited, follow after, and swallow the live insect. Step 1 Inspect the underside of the lizard's belly to check for the size of the femoral pores. A horny toad, sometimes referred to as a horny toad lizard, bears its name from its rounded, toad-like body, even though it is actually a lizard. Taylor on August 30th, at In common with large true frogs and toads, horned lizards tend to move sluggishly, making them easy to catch; this may also avoid triggering attacks by predators. Further research toward their preservation is funded by sale of horned lizard "Keep Texas Wild" license plates.