![Shedd Aquarium reef research.jpg](https://assets2.cbsnewsstatic.com/hub/i/r/2023/10/04/0115b7e1-4fdc-4a64-900a-b291b4c14ebe/thumbnail/640x360/f58135a070fa642ef14aa3de9e9cc0f1/f737e2dde88fa9ab8dfc7de159b58ce5.jpg?v=5710b2ed1cee1bdfd30cb9c02455b43d#)
Shedd Aquarium biologists return from coral reef expedition
"Coral reefs are really important to humans for a number of reasons. They provide us with food. Hundreds of millions of people depend on fish and other food sources that live on coral reefs."