![HHMI's Holiday Lectures on Science show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/026/083/small/howard-hughes-medical-institute.jpg)
Summary: Coral reefs are threatened by many human activities, including global ocean warming from climate change. Some corals can survive unusually high temperatures by virtue of their genetic makeup. These heat-tolerant corals may hold the key to preserving coral reefs into the future.