A recently expanded online database allows researchers and the public to share and view videos of sea lampreys.

Locals helped researchers find the extremely rare boa.

A nude birder and an Australian zoo owner are competing to set the new bar for the number of species spotted in a single year.

Oregonian Noah Strycker broke the world Big Year birding record when he saw his 4,342nd species of the calendar year in 2015.

Several recent studies point to serious—and mysterious—declines in butterfly numbers across the globe.

Citizen-scientist data obtained through the U.K.’s National Bat Monitoring Programme show that populations of 10 bat species have stabilized or are growing.

A legion of citizen-scientist gamers helps a team of researchers explain a long-standing riddle of how the retina processes motion.

An online competition gives citizen scientists a chance to design RNA molecules to generate a target structure.

A century’s worth of collected butterflies shed light on how climate change threatens the survival of early-emerging species.