A Javan rhino walks in the national park in the Ujung Kulon National Park in Indonesia. It is one of  the most threatened of the five rhino species, with as few as 35 individuals surviving. Their skin has a number of loose folds, giving the appearance of armor plating. The discovery of three dead Javan rhinos in 2010 has intensified efforts to save one of the world's most endangered mammals from extinction.
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