A giant chunk has broken off the largest iceberg in the world, which may be the first sign of its deterioration. The behemoth ...

A, the world’s oldest and largest (about the size of Rhode Island), may hit South Georgia Island, home to vulnerable penguins ...

The biggest iceberg on Earth is heading toward a remote island, creating a potential threat to penguins and seals inhabiting ...

The world's biggest iceberg is drifting toward a tiny south Atlantic island, potentially affecting the wildlife there, ...

Measuring roughly 1,350 square miles (3,500 square kilometers) across, A23a is the world's largest and oldest iceberg ...

“If this happens (the iceberg grounding) it could seriously impede access to feeding grounds for the wildlife — seals and penguins mostly — that breed on the island,” Dr. Andrew ...

The world's biggest iceberg — a wall of ice the size of Rhode Island — is lumbering toward a remote island off Antarctica ...

The trillion-ton slab of ice that scientists call a "megaburg" broke off from the Antarctic’s Filchner Ice Shelf in 1986.

If it gets stuck near South Georgia Island, that could make it hard for penguin parents to feed their babies and some young could starve.

It's also a natural process happening more frequently because of human-caused climate change, said British Antarctic Survey physical oceanographer Andrew Meijers, who examined the iceberg up close ...