Giant sea cow 'vacuums' the sea bed
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This giant sea cow looks like it is vacuuming the sea bed as it grazes. The 300kg dugong works its way across the bottom of the ocean while eating sea grass, Egypt. /VCG Photo

This giant sea cow looks like it is vacuuming the sea bed as it grazes. The 300kg dugong works its way across the bottom of the ocean while eating sea grass, Egypt. /VCG Photo