Biologists and designers from Israel’s Technion and Ben Gurion University have 3D-printed bioplastic and ceramic reefs that Red Sea fish have used to make their homes. Although Israeli corals are healthy, the new man-made reefs could support the collapsing ecosystems of reefs elsewhere.

http://nocamels.com/2019/07/1st-study-3d-design-science-coral-reefs/