For this episode of BioScience Talks, we're joined by Peter Edmunds, Professor of Biology at California State University, Northridge, where he has worked for over 30 years. He was here to discuss his recent article in BioScience's new Perspective and Insight category, entitled "Why keep monitoring coral reefs?". The article describes a now 38-year study of coral reefs in the US Virgin Islands and highlights the value of long-term ecological monitoring.