Mangrove trees are among the few plants that grow in salt water on warm coasts. Forests of them grow along the coasts of the Arabian Gulf and the Red Sea. Their roots reach above and below the water. They hold the soil in place and protect the shore from the wearing away of the waves. Small fish, shrimp and migrating birds find shelter and food among these roots. For this reason, mangroves are a natural nursery for fish stocks. These trees also store large amounts of carbon. Even so, their area is getting smaller because of landfill and pollution. This leads people to plant them again.

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