Until 1998，“this fish had never been formally studied in the United States，”says Tonya Wiley of the Mote Marine Laboratory in Sarasota，Fla．“We didn’t know such basic things as where they live，what habitat they use，how often they breed，how many young they have—even what age sawfish are when they begin breeding．”

　　Through historical studies and field research，scientists have become aware of how much the fish’s numbers have decreased．Today，there may be 90 percent fewer sawfish than there used to be．Wiley estimates that only 3,000 to 6,000 sawfish remain in US waters．Sawfish

　　1．

　　Size 2．

　　3．Body：Flat and winged Nose：Like a chainsaw

　　Ways to hunt for food Attacking fish with 4．

　　．

　　Drawing the injured victims with its mouth．

　　sawfish’s disappearance 6．

　　Sawfish’s snouts relates business．

　　Asians’ interest in eating fish．

　　Its 7．

　　and slowly which makes it hard to recover from overfishing．

　　8．

　　Only 10% sawfish left

　　3,000 to 6,000 remain in US waters

　　Efforts 9．

　　Measure

　　To restore sawfish population 10．

　　to all seven of the world’s sawfish species

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