Anemones keep their algae populations in check.

A single-celled organism has an energy-producing enzyme with unique features.

An analysis suggests that DNA cribbed from soil microbes enabled plants’ ancestors to colonize a terrestrial environment.

The protist Rhodelphis limneticus bears little resemblance to its close genetic relative, red algae.

Selected Images of the Day from the-scientist.com

Diverse plots of corals appeared healthier than monocultures at the end of a 16-month study.

Green fluorescent protein lures algal symbionts to corals.

Scientists discover a third fungus that is widespread in lichens, but it’s not clear yet whether it’s a partner in the algal-fungal symbiosis or a bystander.

Algae on the reefs make a sound when they produce gas bubbles.