Pygmy short-horned lizard (72%) and yearlings consume the lowest proportion of ants (60%). Pygmy short-horned lizard The pygmy short-horned lizard ("Phrynosoma douglasii") is a species of small horned lizard that occurs in the northwestern United States. In the past it also occurred in adjacent Canada. Like other horned lizards, it is often called a "horned toad" or "horny toad," but it is not a toad at all. It is a reptile, not an amphibian. The specific name, "douglasii", is in honor of Scottish botanist David Douglas. The pygmy short-horned lizard is often mistaken for its close relative the greater short-horned lizard ("P. hernandesi"
Arizona toad Arizona toad The Arizona toad ("Anaxyrus microscaphus") is a species of toad in the family Bufonidae. It is endemic to the southwestern United States, where its natural habitats are temperate lowland forests, rivers and streams, swamps, freshwater marshes, freshwater springs, ponds, open excavations, irrigated land, and seasonally flooded agricultural land. The Arizona toad was first described by the American herpetologist Edward Drinker Cope in 1867. He named it "Bufo microscaphus" and the type locality was Fort Mohave, Arizona. It was commonly known as the southwestern toad and for many years, three subspecies were recognized, "B. m. microscaphus", "B. m. californicus"