英语听力:自然百科 鲨鱼湾的海豚—9(在线收听

 many of the mothers have been bitten,bravely trying to protect their calves.i am little worried about Puck's calf,she is really having the calf at peak shark attack time.Most of the calves born by December,this way,the calf has a little bit of time to learn how to breath ,stay with the mum,won't get into trouble.Puck's got a big family,maybe they can look out her.

Puck and her unborn calf are in grave danger.Perhaps sensing her vulnerability,Puck's family gather around her .But there is one number of the Beaches missing.mummy's boy ,India is disappeared.
The next day the rest of the team keep an eye on Puck and look out for the missing India.with still no sign of Puck giving birth,J head north to study the surf mums of Peron.Here is Shark Bay,everybody has different hunting tactics and that is particularly true for females,not the males.and females pass them on mother to daughter, J here is here to find out which dolphin is carrying on the surfing tradition.look at that,down on the beach,hunting conditions are perfect.
We just got here this morning at Peron point and it looks like there might be some beaching quite early this morning.
It is high time as huge shoals of mullet are feeding in the shallows.
  原文地址:http://www.tingroom.com/lesson/zrbaike/2013/282626.html