A23a, a massive iceberg nearly the size of Rhode Island, towering at 40 meters, is on a collision course with South Georgia.

The world's largest iceberg is on a collision course with a remote British island, potentially putting penguins and seals in ...

The world's iceberg is heading for South Georgia—a wildlife haven in the South Atlantic—and scientists are worried.

World's Largest Iceberg On Collision Course With South Georgia's Penguins. The world’s largest iceberg is on a collision ...

The iceberg cometh. The world’s largest iceberg is on a collision course with a British island off Antarctica, potentially ...

More than twice the size of greater London, the expanse of ice is unpredictable and dangerous.

This story appears in the September 2009 issue of National Geographic magazine. First comes the Noise, the turbulent din of king penguins calling, fighting, courting, like the ultimate schoolyard ...

Read full article: Turning the page: San Antonio rallies around ‘King of the Hill ... that's home to millions of penguins and seals. The trillion-ton slab of ice — called a megaberg ...

The world’s largest and oldest iceberg is on a collision course with a British island in the South Atlantic, raising fears that colonies of penguins and seals could be wiped out.