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Articles on Marine biology

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Researchers discovered five new species of black corals, including this Hexapathes bikofskii growing out of a nautilus shell more than 2,500 feet (760 meters) below the surface. Jeremy Horowitz

Scientists discover five new species of black corals living thousands of feet below the ocean surface near the Great Barrier Reef

Black corals provide critical habitat for many creatures that live in the dark, often barren, deep sea, and researchers are learning more about these rare corals with every dive.
Whitetip sharks amid a school of anthias near Jarvis island in the South Pacific. Kelvin Gorospe, NOAA/NMFS/Pacific Islands Fisheries Science Center Blog/Flickr

How you can help protect sharks – and what doesn’t work

Sharks are much more severely threatened by humans than vice versa. A marine biologist explains how people can help protect sharks and why some strategies are more effective than others.
Sunscreens for sale at a Walgreens drug store. Jeff Greenberg/Universal Images Group via Getty Images

Do chemicals in sunscreens threaten aquatic life? A new report says a thorough assessment is ‘urgently needed,’ while also calling sunscreens essential protection against skin cancer

Rising concern about possible environmental damage from the active ingredients in sunscreens could have ripple effects on public health if it causes people to use less of them.
The sound of the marine environment has been underestimated, mainly because it is not audible to the human ear. (Shutterstock)

The ocean is not a quiet place

The ocean is often considered a silent universe. But many recent studies highlight the importance of the soundscape for many marine species, both large and small.
There are even more types of viruses in the ocean than researchers once thought. newannyart/iStock via Getty Images Plus

Researchers identified over 5,500 new viruses in the ocean, including a missing link in viral evolution

Viruses do more than just cause disease – they also influence ecosystems and the processes that shape the planet. Tracing their evolution could help researchers better understand how viruses work.
Southerly species like the giant owl limpet, seen here, started appearing on northern California shores. Jerry Kirkhart/Flickr

Five years after largest marine heatwave on record hit northern California coast, many warm–water species have stuck around

The Blob, a long-lasting mass of warm water, sat off the Pacific coast of North America for years, bringing new species to formerly cold waters. What allows some to survive while others fade away?
For centuries, sailors have told tales of milky seas – huge swaths of ocean glowing on dark nights, seen in blue in this false–color satellite image. Steven D. Miller/NOAA

Scientists are using new satellite tech to find glow-in-the-dark milky seas of maritime lore

When conditions are just right in some parts of the Indian Ocean, a type of bacteria will multiply and start to glow. Satellites are helping scientists study these milky seas for the first time.

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