Seafloor Forests Turned Into Strange Reefs

Reefs off Mozambique's Bazaruto Archipelago lack coral. They are made of an unknown material. The seafloor once supported a forest-like ecosystem.

https://gizmodo.com/thousands-of-years-ago-this-seafloor-was-a-forest-now-its-something-else-entirely-2000828089

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#reefs #mozambique #seafloor #coral