Marine

An international team led by scientists at the University of Tartu reports a striking ecological pivot in Earth’s deep past:...

The Great Barrier Reef is not only a habitat for corals and fish—it also harbors a vast, invisible microbial community...

Marine heatwaves (MHWs) have long been treated as self-contained anomalies—events with clear start and end dates. But a new study...

Orcas in the Gulf of California have been documented using a previously undescribed “hold-to-ram” strategy to process prey. Researchers report...

Off Brazil’s São Paulo coast, the critically endangered sand tiger shark appears to have found a reproductive refuge. A new...

Beneath Maine’s salt marshes, underground chemistry is anything but static. As water migrates through soils and rocks, dissolved minerals, reactive...

Anaerobic ammonium oxidation (anammox) is widely viewed as a high-efficiency, low-carbon route for nitrogen removal, yet many mechanistic details have...

Sperm whales have long posed a puzzle for marine scientists: the only whale species known to rest vertically just beneath...

Underwater robotics and diving equipment face a brutal reality: damage happens, power is hard to replace, and most sensors fail...

Rivers can act like living scrubbers for methane, a greenhouse gas far more potent than carbon dioxide over shorter timescales....