Researchers have long known that a sizeable portion of the seals diet is made up of krill.
研究者们很早就知道在豹海豹的食谱中一大部分是由磷虾组成。
But exactly how they consume these tiny crustaceans has been a mystery as the sealsmouths have large sharp teeth that seemed utterly inappropriate for capturing them.
但是由于豹海豹嘴里的尖牙似乎完全不适合捕捉这些磷虾,从而它们是如何享用这些微小的甲壳类生物便成了一个迷。
Some researchers have theorised that the seals might suck water into their mouths and swishit past their closed teeth to capture krill.
一些研究者们从理论角度分析豹海豹也许可以通过先入吸海水再闭紧牙齿将海水吐出的筛选法捕捉磷虾。
But such behaviour depends upon leopard seals being able to suck up food from water, aspecialised feeding behaviour that is rarely seen in top predators.
但是完成这些动作需要豹海豹具备从海水中吸吮食物的能力,而这种特定的进食行为在位于食物链顶端的捕食者身上并不常见。
Keen to explore this, Mr Hocking turned his attention towards Casey and Sabine, two leopardseals at the Taronga Zoo in Sydney.
热衷于探索这一问题的霍金先生将注意力转向了凯西和萨宾这两只悉尼塔龙加动物园的豹海豹身上。
【2015考研英语阅读海豹如何享用它的午餐】相关文章:
最新
2016-10-18
2016-10-11
2016-10-11
2016-10-08
2016-09-30
2016-09-30