Giant iceberg is on a collision course with island home to seals and penguins
The world's biggest iceberg, known A23a, is on a collision course with a tiny island in the South Atlantic, which is home to millions of seals and nearly half the world's population of king penguins.
![Giant iceberg is on a collision course with island home to seals and penguins](https://media.npr.org/include/images/facebook-default-wide-s1400-c100.jpg)
The world's biggest iceberg, known A23a, is on a collision course with a tiny island in the South Atlantic, which is home to millions of seals and nearly half the world's population of king penguins.