Melissa Wilson Sayres is a professor at ASU studying genetics. She participated in research that looked at Y chromosomes from more than 1,200 DNA samples taken from men around the world. Wilson Sayres says the data allows them to infer how and when early humans evolved and migrated across the globe.
Arizona researchers are continuing their study of the aftermath of last year’s massive mine spill into the Animas and San Juan rivers. They’re now looking for participants from three communities in the Navajo Nation.
A key provision of the measure precludes cities from enacting their own restrictions. Sen. John Kavanagh said companies like Amazon want to use drones for delivery. But he said that could be thwarted by a patchwork of local laws, like one in Paradise Valley that prohibits drones from flying over private property.
A decade ago a dam was decommissioned at Fossil Creek, a tiny desert river tucked into the wilderness between Strawberry and Camp Verde. The move restored water to the creek’s rare travertine pools, but it also created a new problem: a flood of visitors.