英語小知識(shí)分享之加利福尼亞近海的海獺
sea otters off the coast of Californiahave an unusual method of getting food．They dive to the floor of the sea to find the shell－fish they like．
When an otter brings a shellfish to the surface of the water，he floats on his back and puts the shellfish on his chest．Then the otter digs the meat out of the shell with his teeth．
Sea otters are especially fond of shellfish with a very hard shell．When the otter brings up one of these，he also brings a stone．He puts the stone on his chest，holding the shellfish in his front paws．He takes a wide swing and smashes the hard shell on the stone．Then he has no trouble getting at the meat in the shell．
生活在加利福尼亞近海的海獺，其取食方法很不尋常，它們潛入海底去尋找它們喜歡的.甲殼動(dòng)物。
當(dāng)海獺把一只甲殼動(dòng)物挾持到水面時(shí)，就背朝下浮在水面上，把甲殼動(dòng)物抱在胸前，然后用牙把肉從殼中剔出。
海獺尤喜食長(zhǎng)有堅(jiān)殼的甲殼動(dòng)物。當(dāng)海獺把這樣一只甲殼動(dòng)物帶到水面時(shí)，同時(shí)也帶上來一塊石頭。它把石頭放在胸前，用前爪抓住這只甲殼動(dòng)物。它大幅度地?cái)[動(dòng)一下身體，對(duì)著石頭猛擊堅(jiān)硬的甲殼，然后，取殼中肉就沒有麻煩了。
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