相关图片：“新物种发现于‘迷失的世界’：匹诺曹树蛙，等”。

Related pictures: "New Species Found in "Lost World": Pinocchio Frog, More."

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这项新的研究发现，70%的啮齿动物和灵长类动物的物种具有阑尾。

The new study found that 70 percent of rodent and primate groups have species with an appendix.

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2005年，科学家们在新几内亚的南部水域得到了一个意想不到的发现：一种叫做矮鳍的海豚新物种。

Scientists made an unexpected discovery in the waters south of New Guinea in 2005: a new species of dolphin called the snub-fin.

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