This striking astronaut photo shows a unique chain of three atolls lined up side-by-side off the coast of Australia. The oval islands were once part of a colossal coral system that rivaled the Great ...

Did you know the Earth is home to hundreds of thousands of islands? From vast continents like Australia (often considered an island continent) to tiny, uninhabited specks of land, these formations are ...

Coral reefs are one of the most diverse ecosystems on the planet. What are the abiotic and biotic interactions that structure this diverse ecosystem? Corals are members of the phylum Cnidaria, a ...

The ring-shaped coral islands known as atolls, like this one in the Maldives Islands in the Indian Ocean, may trace their formation to sea levels repeatedly rising and falling over hundreds of ...

The ring-shaped coral islands known as atolls, like this one in the Maldives Islands in the Indian Ocean, may trace their formation to sea levels repeatedly rising and falling over hundreds of ...