Bacteria (Lepthotryx discophora) causing iridescent patterns and White willow tree leaf (Salix alba) in river, Sierra de Grazalema Natural Park, southern Spain, November.

Living off the energy they extract from heavy metals, these bacteria create spectacular natural displays—and leave clean drinking water in their wake.

A variety of freshwater mussels illustrates the wide diversity of sizes, shapes and colors in this, the most imperiled group of organisms in the U.S. Photograph by Gary Meszaros

Resurrecting the Riverkeepers

Article

07.11.2017

The dieoff is happening out of sight and out of mind. Reversing it will require scrappy scientists and unlikely allies.

Mealtime Swim

Spotlight

05.24.2016

Back from the brink, Eurasian beavers are once again an integral part of the river ecosystem in France’s Loire Valley.

bioGraphic is powered by the California Academy of Sciences, a renowned scientific and educational institution dedicated to regenerating the natural world through science, learning, and collaboration.

A Colorful Cleanup

Resurrecting the Riverkeepers

Mealtime Swim

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