- To date over 3,000 species of their fish have been described -
据统计 被命名的鱼类已达到3000多种
- more than in the whole of the Atlantic Ocean.
这比整个大西洋的鱼类种数还要多
- The Amazon is so large and rich in fish
亚马逊河养育着丰富繁多的鱼类
- that it can support fresh water dolphins.
为淡水海豚提供了生存条件
- These botos are huge - two and a half metres long.
这些亚马逊江豚体型巨大 身长达2.5米
- In these murky waters they rely on sonar to navigate and hunt.
它们利用回声定位 在昏暗的水中探路和捕食
- They work together to drive shoals of fish into the shallows.
它们一起合作把鱼群赶到浅水区
来自《行星地球 第一季 第三集 Planet Earth S01E03 淡水》第 182 行