Horned toad and Iguanid lizard

Horned toad noun - Insectivorous lizard with hornlike spines on the head and spiny scales on the body; of western North America.

Iguanid lizard and horned toad are semantically related. In some cases you can use "Iguanid lizard" instead a noun phrase "Horned toad".

Iguanid lizard noun - Lizards of the New World and Madagascar and some Pacific islands; typically having a long tail and bright throat patch in males.

Horned toad and iguanid lizard are semantically related. Sometimes you can replace phrase "Horned toad" with "Iguanid lizard", this phrases are similar.