their diet is mostly vegetarian. 鬃狼以素食为主

188. A maned wolf.
     鬃狼
189. Quiet and shy, it's little known and seldom seen.
     鬃狼安静而腼腆 它们鲜为人知 较为罕见
190. Unlike any other wolf in the world,
     与世上其他狼不同
191. their diet is mostly vegetarian.
     鬃狼以素食为主
192. And they particularly like lobeira fruit.
     其中最受鬃狼钟爱的是狼果
193. This plant increases the fertility of the land,
     这种植物可以增加土壤肥力
194. and helps to sustain the entire Cerrado.
     并有助于塞拉多草原的稳定

来自《行星地球 第三季 第三集 Planet Earth S03E03 沙漠与草原》第 191 行