Puck needs to watch out.
帕克要当心了HeWZ6g(BcxU5。
As she searches the sea grass, she will be unaware of any shark approaching.
当它到达海草场时，还没发现鲨鱼正在接近hpQ)Zd])VT~[HJ0V4y。
If a tiger shark closes her from behind,her sonar can not detect it.
如果一只虎鲨从后面靠近，它的声呐就不起作用了Ss_T%g]b5^,S7f|。
Distracted,Puck could easily be attacked.
慌乱中的帕克就会很容易遭到攻击G&r@8dRMEzQOCc。
Once detected,Puck can easily out swim the shark.
一旦发现鲨鱼，帕克很容易就能逃脱h+u3vGud&!。
But when her calf arrives, it wouldn't be so easy for her to escape.
但此刻它有孕在身，所以逃起来有点困难Ty%lc,]Evi72u。
It gets very shallow on here,this is the low tide too.
这里非常浅，还伴随着低潮汐#ruf4(%JSnf^K*H。
Dugongs, mother and a calf,oh look at this little baby,look at that.
一度儒艮母子！看那个小宝宝！快看哪！
More than 10,000 dugongs live in Shark Bay.
鲨鱼湾生活着10000多只儒艮CLW^Ywf*fDoG。
It's the largest population in the world.
这是世界上最大的数量q&@ji5bVMU1(。
Grazing on the grassbeds,they are the most vulnerable to shark attacks.
正在草床上吃草的它们是最容易受到鲨鱼攻击的jOtT9f%(~2QFRD8|。
In the shallows, they have less room to maneuver.
在浅水区它们没有太多空间活动L|8q(ZF@CYW[e|6(4r#。
The calf swims on top of its mum,that way is to protect it from tiger sharks which could make a good meal of a dugong calf.
小儒艮在妈妈上方游着，这样就可以避免被虎鲨袭击，小儒艮是顿极好的美餐X4Zq^qvwJ%DL3。
Much slower swimming than dolphins ,thousands of dugong calves are taken by sharks every summer.
它们比海豚游得慢的多，每年夏天有上千只小儒艮被鲨鱼吃掉hvq^-z%DB]#-5D2|6(。
Got dolphins and dugongs together here.
我们发现这里的海豚与儒艮生活在一起_iRVRXJ]a4&02E*_DYQA。
Hey,Puck.oh..you're wide.
嘿，帕克，噢，你真大,F@shraXiWoUV。
Looking for clues as to when Puck might give birth.
为了了解帕克何时会分娩，
Janet lowers a special microphone into the water.
珍妮特把一个特殊的麦克风放入水中@GbKEq1WZqR^GmG(sN。