AI Insight
Corals create microscopic vortices on their surface to draw in oxygen-rich water, a previously unknown survival mechanism that occurs at scales invisible to the naked eye. This active fluid manipulation allows corals to meet their oxygen needs despite being sessile organisms. However, this oxygen-gathering process becomes impaired when water temperatures rise beyond normal ranges.
Why it matters
Understanding how corals obtain oxygen reveals a vulnerability to ocean warming that could help explain coral bleaching and death during heat events. This discovery may inform coral conservation strategies and help predict which reef systems are most at risk as ocean temperatures continue to rise.
Understand the Science
At first glance, corals present as little more than colorful rocks — piles of lobes, stalagmites, and branches poking out from the seafloor. They are anything but. Corals are complex creatures that form enduring colonies, and just like other animals they need oxygen to live. Across the living surface of coral, a frantic dance of survival takes place, invisible to our eyes and unknown to science…
Source: Corals Spin Tiny Vortices to Get Oxygen, but Not if It’s Too Hot