Seagrass, an underwater plant that grows on the ocean floor, is very important for sea life. It also helps prevent global warming by storing carbon, a harmful gas. However, scientists don't know exactly how much seagrass is at the bottom of the ocean. With the help of tiger sharks, a team of researchers has discovered the world's largest seagrass meadow（grassland）on the seafloor near the Bahamas.
海草是一种生长在海底的水下植物，对海洋生物非常重要。它还通过储存有害气体碳来帮助防止全球变暖。然而，科学家们并不确切知道海底有多少海草。在虎鲨的帮助下，一组研究人员在巴哈马附近的海底发现了世界上最大的海草草甸（草原）。
Seagrass meadows are home to many different kinds of fish, shellfish, and so on. Large sea animals, such as sharks, also spend a lot of time there looking for food. Seagrass can grow in very deep and dark waters, making it difficult to find. But sharks can dive deep into the water and get to the areas people cannot reach.
海草草甸是许多不同种类的鱼类、贝类等的家园。鲨鱼等大型海洋动物也会花很多时间在那里寻找食物。海草可以在非常深和黑暗的水域中生长，很难找到。但鲨鱼可以潜入水中，到达人们无法到达的地方。
After noticing tiger sharks swimming through seagrass off the Bahamas, an American scientist worked with a seagrass expert, trying to map the locations of the plants. The researchers fitted seven tiger sharks with cameras. Since tiger sharks swim in groups, they placed satellite tracking tags on eight other sharks to find out exactly where the animals swam. They collected hours of videos of the tiger sharks swimming through seagrass.
在注意到虎鲨在巴哈马群岛附近的海草中游动后，一位美国科学家与一位海草专家合作，试图绘制出这些植物的位置图。研究人员为七只虎鲨安装了摄像头。由于虎鲨是成群游泳的，他们在另外八条鲨鱼身上放置了卫星跟踪器，以确定动物游泳的确切位置。他们收集了数小时的虎鲨在海草中游泳的视频。
The researchers found more seagrass growing near the Bahamas than they expected—in fact, they believe that there is more seagrass there than anywhere else on Earth. The new finding increased the total number of seagrass known to exist by 41%. However, more research is needed to discover the true size of the seagrass meadow.
研究人员发现，巴哈马群岛附近生长的海草比他们预期的要多——事实上，他们认为那里的海草比地球上其他任何地方都多。这一新发现使已知存在的海草总数增加了41%。然而，需要更多的研究来发现海草草甸的真实大小。
Scientists often depend on findings from divers and boats to study about the underwater world, but this team found that working with animals improved their understanding. They are now placing cameras on sea turtles to study seagrass in the Red Sea. Hopefully, more mysteries about seagrass will be solved.
科学家们经常依靠潜水员和船只的发现来研究水下世界，但这个团队发现，与动物一起工作可以提高他们的理解。他们现在正在把相机放在海龟身上，研究红海的海草。希望能解开更多关于海草的谜团。
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