Coral polyps expel algae during bleaching
Rising ocean temperatures force coral polyps to expel vital algae, causing reefs to bleach and endangering diverse marine ecosystems that rely on them.
Tiny coral polyps, the builders of vibrant reefs, rely on microscopic algae for survival. These algae provide food through photosynthesis, but rising ocean temperatures stress the polyps, causing them to expel their colorful partners. This process, known as coral bleaching, leaves corals white and vulnerable.
There's more to this story — open the app to keep reading.
Continue Reading in App
2 more paragraphs · plus a 2-question quiz