Coral bleaching occurs when coral polyps, which are tiny animals living in coral reefs, expel the colorful algae called zooxanthellae that live inside them. These algae provide corals with food and their vibrant colors. When stressed by factors like rising water temperatures or pollution, corals lose these algae, turning white and losing their main source of energy. If the stress continues, bleached corals can die, leading to the decline of coral reefs, which are vital ecosystems for many marine species. Protecting our oceans from climate change and pollution is essential to prevent coral bleaching and preserve these beautiful underwater habitats.