Some fish can communicate with other species by changing the colour of their bodies – as this incredible footage shows.

A rare glassy day on the Great Barrier Reef reveals one of the most incredible ocean environments imaginable. With no wind and perfect visibility, the reef comes alive with massive schools of fish, ...

Add Yahoo as a preferred source to see more of our stories on Google. The Great Barrier Reef is the world’s largest living structure, so big, it can be seen from space. Photograph by Kieran Stone, ...

Parts of Australia’s iconic Great Barrier Reef, famed for its stunning colors and biodiversity, suffered the biggest decline of coral on record last year after a marine heatwave bleached vast swathes ...

What it's like to night dive on the Great Barrier Reef Stretching almost 1,500 miles, the Great Barrier Reef is so vast that just 20% has been surveyed. With tourism funding millions in conservation ...