1. Both these fossils were dry-land tortoises. 这两块化石都是旱地陆龟。
2. Animals which behave "frugally" with energy become particularly old, for example, crocodiles and tortoises. 对能量使用表现得很“节俭”的动物变得非常长寿，比如鳄鱼和龟类。
3. Today's land tortoises constitute a single branch, deeply nested among branches consisting of aquatic turtles. 现在，陆龟构成一个独立的分支，完全被淹没在海龟的分支当中。
4. You might think, therefore, that modem land tortoises have probably stayed on land ever since those early terrestrial times, as most mammals did after a few of them went back to the sea. 因此，你可能会想，现代陆龟可能从早期的陆栖时代就一直呆在陆地上，就像大多数哺乳动物，他们中的一些返回海洋之后所做的那样。
5. Finally they returned yet again to the land as tortoises, some of which now live in the driest of deserts. 最终，它们再一次回到陆地，进化成为陆龟，其中的一些现在生活在非常干旱的沙漠中。
