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  • 英语听力:自然百科 鲨鱼湾的海豚—10

    Traveling at speeds of up to about 20 miles,they drive the mullet onto the beach.Trapped,the fish have no way to turn.Flattening out their bodies like surf boards,they skim in just inches of water. The surf mums are the only dolphins in the world who...

  • 英语听力:自然百科 鲨鱼湾的海豚—9

    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 t...

  • 英语听力:自然百科 鲨鱼湾的海豚—8

    Oh,whistle,i thought i hear a whistle here.something extraordinary is happening.Puck uses her unique call to identify herself to other dolphins,Yet strangely there are no other dolphins around.J believes that Puck is calling her unborn calf,if she is...

  • 英语听力:自然百科 鲨鱼湾的海豚—7

    Puck needs to watch out.As she searches in the sea grass,she will be unaware of any shark approaching.If a tiger shark closes form behind,her sonar can not detect it.Distracted,Puck could be easily attacked.Once detected,Puck can easily out swim the...

  • 英语听力:自然百科 鲨鱼湾的海豚—6

    Here's Puck right here with India. He just stroked her along the side. Right now, Puck seems to be very tolerant of India. I don't know if that will happen when the baby is born, and she might really have to push India out of the way. Puck can't supp...

  • 英语听力:自然百科 鲨鱼湾的海豚—5

    It's high risk in this shallow water, India could easily strand. I saw India catch a big one and he's a good hunter. Everything the Beachies do is recorded in minute detail. Across Shark Bay, Janet's research team follow different families of dolphin...

  • 英语听力:自然百科 鲨鱼湾的海豚—4

    Puck's baby is dangerously late,over the next month,tiger shakes numbers will increase tenfold,as they head south to their hunting ground in the bay.For Puck's calf to stand the best chance of survival,she needs to have it soon. New born are easy pre...

  • 英语听力:自然百科 鲨鱼湾的海豚—3

    She's already lost four babies, at least one to sharks. This new calf would be especially precious. Very little is known about the first days of a calf's life. It's a rare opportunity for Janet to learn more. They are all very close, and they just so...

  • 英语听力:自然百科 鲨鱼湾的海豚—2

    The world heritage site,its enormous seagrass beds carpet the shallows, creating one of the richest marine environments on earth. Several hundred families of bottlenose dolphins live here, and one of the largest is called the Beachies. Puck began her...

  • 英语听力:自然百科 鲨鱼湾的海豚—1

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