Step 1 : Introduction to the question "Which U.S. state lists the horned toad as its state reptile?"
...Wyoming named the horned toad its official state reptile in 1993. This "toad" is actually a lizard, however. It has its scientific classification name but is often called by its nickname "horned toad" because of its toad-like, round shape. It's actually a member of the iguana family. They grow to 3 to 5 inches in length, with short legs and a short tail. Their favorite snacks are ants and other insects. They are docile and gentle by nature but can look fierce because of their horn-like spines on the back of their heads and along the sides of its body. Source: StateSymbolsUSA.org