Coral reefs function as cosmopolitan cities where sea animal partnerships thrive. [VID: Compilation footage of coral reef underwater] | Nature | PBS

Corals are alive 🪸 They might look like colourful rocks, but they’re actually the living architects of our ocean. They grow, reproduce and build the habitat that sustains a quarter of all marine life. They are also incredibly vulnerable. Comment 💙 if you know why. #protectourocean #ourblueplanet #restorationgeneration | Great Barrier Reef Foundation