A Las Vegas-based startup venture is developing new technology to harvest water from the air, based in part on what it is learning about the capabilities of a small tree frog species in Australia. WAVR Technologies is designing a system that copies these amphibians’ process of hydrating themselves by absorbing water through their skin. Paul Westerhoff, a professor in the School of Sustainable Engineering and the Built Environment, part of the Fulton Schools, who leads WAVR’s water working group, says the new system would help overcome environmental challenges urban areas are facing as they try to grow their economies while their populations and their need for water resources are also rapidly increasing.