 coral reefs around the world are being affected by heat waves caused by climate change. The effects of these heat waves vary depending on the type of corals present, their previous exposure to heat, and the presence of symbiotic algae. In this study, researchers examined the effects of heat waves on corals in the Pacific Ocean over a period of 11 years. They found that corals were able to adjust to the changing temperatures through changes in their symbiotic algae and their own genetic makeup. These findings suggest that corals may be able to adapt to rising sea temperatures if given enough time. This article was authored by Eric J. Armstrong, Julie Le Hoang, Quentin Karadek, and others.