Recycling Mystery: Oyster Shells
Briefly

Oysters are significant not only as a seafood delicacy but also as crucial players in maintaining ocean health by filtering water and providing habitats.
A single oyster can filter up to 50 gallons of water daily, removing harmful materials and supporting marine ecosystems by hosting other sea life in its reefs.
For young oysters to survive and mature, they require hard surfaces like oyster shells to attach to, which is critical in areas facing oyster shortages.
The Billion Oyster Project is vital for restoring oyster reefs in New York Harbor, using recycled shells to enhance marine habitats and filter pollutants.
Read at Earth911
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