* Coral reefs cover less than 1% of the ocean but are home to 25% of marine species.
* Coral reefs are the largest biological structures on Earth.
* Coral reefs are the largest biological structures on Earth.
* Coral reefs may hold the keys to new medicines and treatments for humans.
* Coral reefs are under severe threat from climate change and human impacts.
![](https://idcontheisland.com/wp-content/uploads/2021/04/coral-reefs-2728211-1-1024x683.jpg)