Most know Rachel Carson for her work on the dangers of chemical pollutants, but the writer’s earlier prose took readers on a tour of a mysterious underwater world.

Understanding the dinoflagellates that regularly wreak havoc on marine and nearshore ecosystems in the Gulf of Mexico could help researchers mitigate the damage they cause.

Researchers will inject a relaxin-like hormone into sea cucumbers to boost the animals’ numbers.

A mysterious illness is causing tissue loss in many species.

The unusual cephalopod was spotted on a recent underwater research expedition.

Groups of corals release all of their eggs and sperm once a year, but the timing of their spawning is under threat from climate change.

Microbes that dwell in nutrient-poor waters use a photopigment called retinal to harvest energy from sunshine at levels at least equal to those stored by chlorophyll-based systems.

Sargassum is piling up on Caribbean beaches, smothering nearshore ecosystems, driving off tourists, and compelling researchers to figure out why it’s suddenly so abundant.

Scientists are pretty sure they know where the seaweed is coming from. Now they want to know why it’s here.