I realize the point is moot now, but my own Google search for pain causing a fever led me to multiple answers of NO, and I know from my own medical issues that it is untrue, fever can be a rather rare response of the body to pain.
Harvester ants are the staple food source for most types of Horned Lizards or (horn toads). They provide formic acid - a necessary nutrient for horned lizards. A typical horned lizard adult may eat from 20 - 100 harvester ants a day. However, most pet stores do not supply harvester ants as feeders for horned lizards.
We supply harvester ants as feeder ants for horned lizards. We ship large quantities of harvester ants for horned lizards and provide Care Instructions and support on how to store and care for them. We can supply you with the harvester ants your pet horned lizard needs.