From NPR.

The world’s biggest iceberg — a wall of ice the size of Rhode Island, named A23a — has run aground near a remote island off Antarctica that’s home to millions of penguins and seals.

The trillion-ton slab of ice — called a megaberg — is currently aground near the South Georgia Island.

A23a could affect the marine life on the island, including penguins and seals, as they use the area to breed and feed. Icebergs can block pathways to food, making the adults swim farther, burning more energy, bringing back less to the babies.