Uploaded September 2018 | Updated September 2026, 13 hours ago
This white banded sea urchin in the Living Coral display is inflating and deflating to regulate its circulatory system. As with other echinoderms (like starfish), sea urchins do not have a brain and instead rely on their water-vascular system which comprises of water-filled channels that run through its body. You can see a wide collection of urchins, anemones, corals and beautiful tropical fish in this display just after the Lagoon of Light.
This white banded sea urchin in the Living Coral display is inflating and deflating to regulate its circulatory system. As with other echinoderms (like starfish), sea urchins do not have a brain and instead rely on their water-vascular system which comprises of water-filled channels that run through its body. You can see a wide collection of urchins, anemones, corals and beautiful tropical fish in this display just after the Lagoon of Light.
