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 ...

In coral reefs throughout the world, visually striking bands of bare sand surrounding reefs are often visible in satellite imagery but their cause remains a mystery. One theory is fear. Parrotfish and ...

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 ...