The Houston toad's habitat includes ponds, flooded fields, lakes, roadside ditches and pastures. The Houston toad is currently numerous in the Bastrop County in Texas where there are 1500 individuals.
The Houston toad is brown with black spots covered with warts. The females are larger than the males; the females measuring from 2.1 inches (5.3cm) to 3.1 inches (7.9cm), and the males from 1.8 inches (4.6cm) to 2.7 (6.9cm) inches with the males.
The diet of the adults differs from those of the tadpoles. The adults eat insects such as ants and beetles while tadpoles feed on ants and pine pollen.
Breeding occurs in late January when the temperature is around 57°F (14°C).
The Houston toad was discovered in the late 1940s and was thought to be extinct because of severe droughts in Texas in the 1950s. It was found again in Bastrop State Park in 1965. There are many reasons for the decline of its population: droughts, clearing of its habitats, use of pesticides, and weather changes. The existing populations are being protected and there is a search for other suitable habitats.