But heat has been a hindrance to the dogs, particularly in the arid Southwest.

Today, tenajas are an integral part of sustaining life in the arid Southwest.

Compounding the crisis, many species in the arid Southwest live in single small streams or springs, fragile aquatic ecosystems that are easily disrupted.

They hope that the move will allow them to keep tapping water for swimming pools and irrigation ditches across the arid Southwest.

The mollusks of the arid Southwest, with an Arizona checklist.

Tribes in the arid Southwest held traditional dances to get rain by winning the favor of their gods.

There are also a few large bulk water suppliers in the arid Southwest of the United States, which sell water to utilities.

But unlike the rest of the arid Southwest, here in Supai there is too much of it.

Date of channel trenching (arroyo cutting) in the arid Southwest.

In the arid Southwest, water is an elixir that can nourish either crops or population.