tuatara

1. The tuatara rate is significantly faster than for animals including the cave bear, lion, ox and horse.: 刺背鳄蜥的进化速率比起包括洞熊、狮子、公牛和马在内的动物，都要快得多。

2. Tuatara once ranged throughout New Zealand before rats, cats, and stoats— introduced by human colonizers— wiped them out.: 据殖民者们介绍说，大蜥蜴以前遍布新西兰，直到老鼠、猫和白鼬把它们挤掉。

3. Tuatara once ranged throughout New Zealand before rats, cats, and stoats - introduced by human colonizers - wiped them out.: 据殖民者们介绍说，大蜥蜴以前遍布新西兰，直到老鼠、猫和白鼬把它们挤掉。

4. Photo Gallery: Jurassic Period Clinging to life on an offshore crag, a tuatara looks little different from his Jurassic relatives.: 死抱着在海面上的峭壁，一只新西兰大蜥蜴看起来有点不同，从它的侏罗系的亲属。

5. Photo Gallery: Jurassic Period Clinging to life on an offshore crag, a tuatara looks little different from his Jurassic relatives.: 侏罗纪时代图片集。死抱着在海面上的峭壁，一只新西兰大蜥蜴看起来有点不同，从它的侏罗系的亲属。

6. Saving the tuatara is a matter of pride among new zealand's indigenous groups. the animals are revered by the maori as a taonga or treasure.: 拯救大蜥蜴在新西兰土著部落里是一件荣耀的事情。这种动物被毛利人视宝贵财富。

7. Of course we would have expected that the tuatara, which does everything slowly — they grow slowly, reproduce slowly and have a very slow metabolism — would have evolved slowly.: 我们本以为刺背鳄蜥应该进化得很慢，就像它们做什么事都很慢一样——长得慢，繁殖慢，新陈代谢也慢。

8. However, while a boost in temperature generally results in a nest full of more females than males, the opposite is true for tuatara whose offspring skew toward male in warmer climes.: 通常来说，如果温度升高，雌性后代的出生率就会高一些。但鳄蜥的情况正相反，在更温暖的环境下，雄性后代的出生率更高。

9. Among the several subclasses (or "orders" in biology) of reptiles are snakes and lizards, turtles and tortoises, crocodiles and alligators, and the tuatara, a marine lizard in New Zealand.: 在几个亚纲（或生物学的“目”）的爬虫类中，有蛇和蜥蜴、乌龟和陆龟、鳄鱼和短吻鳄以及虫蜥蜴——一种现存于新西兰的海蜥蜴。

10. Among the several subclasses (or "orders" in biology) of reptiles are snakes and lizards, turtles and tortoises, crocodiles and alligators, and the tuatara , a marine lizard in New Zealand.: 在几个亚纲（或生物学的“目”）的爬虫类中，有蛇和蜥蜴、乌龟和陆龟、鳄鱼和短吻鳄以及虫蜥蜴——一种现存于新西兰的海蜥蜴。

11. They found that, although tuatara have remained largely physically unchanged over very long periods of evolution, they are evolving - at a DNA level - faster than any other animal yet examined.: 他们发现，虽然刺背鳄蜥的大部分形态在长期的进化中并没有产生变化，但从DNA层面上看，它们比其他已经检测过的动物的进化速度都要快。

12. They found that, although tuatara have remained largely physically unchanged over very long periods of evolution, they are evolving - at a DNA level - faster than any other animal yet examined.: 他们发现，虽然刺背鳄蜥的大部分形态在长期的进化中并没有产生变化，但从DNA层面上看，它们比其他已经检测过的动物的进化速度都要快。

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