For millions of years, the Niger River has flowed south into the Gulf of Guinea, depositing layers of sediment at its mouth. This process has formed the Niger River Delta, a large forested wetland in Nigeria that is home to a diversity of species. Though the region has long been a refuge for plants and animals, it is now the subject of great controversy. That's because the same sediments which characterize this ecoregion and upon which these forests grow also hold another valued resource: oil.
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