Test more. Assume less. How a scientific mindset drives smarter decisions in an uncertain world. Every day, leaders face high-stakes decisions about products,... Book A year of HBR's essential ...

This animation shows the dynamic process of how a coral atoll forms. Corals (represented in tan and purple) begin to settle and grow around an oceanic island forming a fringing reef. It can take as ...

When corals are stressed by changes in conditions such as temperature, light, or nutrients, they expel the symbiotic algae living in their tissues, causing them to turn completely white. When a coral ...