Horned lizards, also known as horned toads, are a group of reptiles belonging to the family Phrynosomatidae. They are characterized by their flattened bodies and distinctive horn-like projections on their heads. These lizards are primarily found in arid and semi-arid regions of North America, where they blend into their surroundings to avoid predators. These lizards are known for their unique defense mechanisms, including the ability to puff up their bodies and, in some species, squirt blood from their eyes to deter threats. Their diet mainly consists of ants and other small insects, making them important contributors to the ecosystem.