非洲大草原上的沼泽地,带给很多动物噩梦。狼、斑马等许多动物每每经过,时常葬身其中。令人惊讶的是,身体笨重的大象成群结队穿越沼泽地竟如履平地,极少陷入其中。经过研究人们发现,大象经过可怕的沼泽地时,有自己的“路标”。这些路标就是沼泽地上的小树丛。每一群大象过沼泽地时,都沿着这些树丛走,并 Wetlands on the African savannah bring many animal nightmares. Many animals, such as wolves and zebras, often pass through them and often die in them. Surprisingly, bulky elephants flocked through the swamps and was rarely caught in it. After research people found that elephants through the terrible marshes, have their own “road sign ”. These signposts are small trees in the swamps. Each group of elephants walked along these trees as they crossed the marshland