Spotted bats in an Arizona cave share maternal DNA with bats that died there 2,100 years ago, while the Southwest holds most of their variety.

October 9, 2026 • Cleveland officials are renewing efforts to overhaul the city’s air pollution code for the first time since 1977, citing health concerns. Proposed changes would tighten regulations ...

This story begins with an unexpected incident that occurred when a University of Arizona science writer was taking part in a popular Tucson activity: watching clouds of bats emerge from under a bridge ...