A new citizen science project invites volunteers to help study insect diversity in the Grand Canyon.
Every night when she’s on the water, Gibney Siemion, a river expedition guide in the Grand Canyon, crouches at the edge of the Colorado River right on the line where the sand turns from wet to dry. Her equipment is rudimentary: a jar of grain alcohol poured into a plastic Tupperware with a glowing bar of black light perched on its edge. But this is an effective insect trap. Siemion, and ci