The return of sharks to Ashmore Reef after marine protection was enforced in 2008 shows how top predators influence not just what they eat, but how other species behave. New research reveals that ...

Young seabirds create a seasonal food source that draws tiger sharks and pushes other sharks to change where and when they ...

A study led by Associate Professor Kelton McMahon at University of Rhode Island's Graduate School of Oceanography has found that food webs on tropical reefs are more fragile than we once thought.

A newstudy published in PLOS ONEwarns that Hawaiian coral reefs are facing a major ecological tipping point. Researchers from North Carolina State University and Arizona State University report that a ...

Sharks are a broad and diverse group of species, but in the public imagination we tend to treat them all the same. Brandon Cole Marine Photography/Alamy Stock Photo This article is from Hakai Magazine ...

Sea urchins are dying off worldwide from an unknown disease, threatening reef balance and sparking urgent efforts to identify the pathogen.

Vulnerable, young corals in Florida's reef are being protected with biodegradable, 3D-printed cages in an effort to prevent lab-grown coral from being eaten by natural predators at sea. Keri O'Neil, ...

On a remote reef about 90 miles off the coast of the Yucatan Peninsula, a predatory fish scours the shallow seafloor. Research divers spotted the 3.5-inch-long animals during recent survey trips to ...

Grazing halos at Heron Island, Australia, are distinct where coral are clustered (outlined with a white box) but merge where coral are dispersed (outlined with a black box). In coral reefs throughout ...

On a remote reef off the coast of Mexico, a new species of predator was discovered. Marek Okon via Unsplash On a remote reef about 90 miles off the coast of the Yucatan Peninsula, a predatory fish ...

A new study links grazing halo patterns in coral reefs, as well as those in other patchy habitats, to the spatial patterns of the shelter habitat itself. The researchers found that grazing halos are ...