Studying coral bleaching in marine biology is significant as it reveals the health of coral ecosystems, which are vital for ocean biodiversity. Coral bleaching occurs when corals expel the symbiotic algae (zooxanthellae) that provide them with nutrients and their vibrant colors, often due to temperature stress or pollution. This phenomenon can lead to a decline in coral health and a loss of marine biodiversity, impacting numerous species that depend on coral reefs for habitat and food. Understanding the causes and consequences of coral bleaching is essential for developing strategies to conserve these ecosystems and mitigate the effects of climate change.