A school of fish beside a coral reef

Beware Marine Heatwaves

Marine heatwaves are becoming stronger and more common as the climate warms.
Dolphins in captivity

The Ethics of Research on Captive Dolphins

Researchers say that dolphins are so smart that captivity causes them psychological harm. But getting data in the open ocean can be tricky.
A pair of humpback whales

The Cultural Differences in Humpback Whale Songs

One group of researchers found distinct differences among songs from groups of humpback whales that are geographically isolated from each other.
A schematic of manganese nodules mining on the deep sea floor.

The Potential Pros and Cons of Seabed Mining

Concentrations of iron manganese nuggets and other metals in the deep seabed have stirred up interest in mining. But at what cost?
A giant squid

Why Deep-Sea Creatures Get Weirdly Giant

A giant squid sighting has us wondering all over again: how on earth do deep-sea creatures get so large?
A carnival cruise ship

The High Environmental Costs of Cruise Ships

Cruise ships pose many environmental concerns, from waste disposal to toxic paint to the creation of noise that can harm marine life.
Flakes of sea salt spilling out of a jar

A Grain of Solar-Made Sea Salt

 Artisanal sea salt makers are reviving the ancient method of sustainably harvesting salt.
Lou-seal being released

The Seal That Flew 1000 Miles To Get Home

Found stranded on a subtropical beach, the mystery seal finally comes home to its North Atlantic waters.
Plastic waste floating in the sea

Is Plastic Pollution Depriving Us of Oxygen?

Plastic debris is killing the ocean’s “invisible forests,” which produce ten percent of the oxygen we breathe.
The wreck of the H.M.S. Deal Castle off Puerto Rico, in the hurricane of 1780 with the crew escaping on a raft, by John Thomas Serres

The Dramatic Waves That Sink Ships

Rogue waves are becoming larger and more dangerous. But even long-term studies have not made these waves any easier to predict or avoid.