这两块化石都是旱地陆龟。
锦龟在水底狩猎。
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。
Animals which behave "frugally" with energy become particularly old, for example, crocodiles and tortoises.
完成这一壮举需要适应，既要在龟体内产生热量，又要防止它逃入周围的水域。
Accomplishing this feat requires adaptations both to generate heat in the turtle's body and to keep it from escaping into the surrounding waters.
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。
Finally they returned yet again to the land as tortoises, some of which now live in the driest of deserts.
就生理机能而言，棱皮龟从某种程度上来说更像一只爬虫类的鲸，而非海龟。
When it comes to physiology, the leatherback turtle is, in some ways, more like a reptilian whale than a turtle.
所有陆龟品种都在三角形的上部形成一个紧密的点群；所有的水龟都聚集在三角图的下方。
All the land tortoise species formed a tight cluster of points in the upper part of the triangle; all the water turtles cluster in the lower part of the triangular graph.
棱皮龟通过将鳍状肢底部的血管排列成逆流交换系统来完成这一过程。
The leatherback accomplishes this by arranging the blood vessels in the base of its flipper into a countercurrent exchange system.
棱皮龟长到其巨大体型的时间比其他海龟要短得多。
Leatherbacks reach their immense size in a much shorter time than it takes other sea turtles to grow.
当然并不只是棱皮龟有这种结构，海鸥的腿部也有一个逆流交换系统。
The leatherback is certainly not the only animal with such an arrangement; gulls have a countercurrent exchange in their legs.
成年棱皮龟的体型是最大的海龟的两倍，因此需要更长的时间来冷却。
An adult leatherback is twice the size of the biggest cheloniid sea turtles and will therefore take longer to cool off.
棱皮龟可以通过在水面上晒太阳来为身体获取热量；深色近乎黑色的身体颜色可以帮助它吸收太阳辐射。
A leatherback may be able to pick up some body heat by basking at the surface; its dark, almost black body color may help it to absorb solar radiation.
蛇，龟和鳄鱼都是爬行动物。
“这就像是《龟兔赛跑》，跑得更快的不是赢家。”丽兹心里这样想着，她虽然觉得很骄傲，但也感到自己收获了教训：跑得快、骄傲的人也许赢得起点，但安静、稳重的人最终会做得更多。
"This is much like 'The Hare and the Tortoise', the faster, but not the winner," thought Lizzy, who, though proud, had enough feeling to take a lesson: The quick, proud may have the start, but the quiet, steady may do more in the end.
现在开发油田的许可证以龟速核发颁授。
Licences to develop oil fields are being awarded at tortoise speed.
它的商店里还销售活龟和蟾蜍。
不过龟井则希望使其保持完全的国有状态。
这也是“聪明龟”能成为世界上最畅销玩具的原因。
And that is why the 'Smart Tortoises 'are one of the world's best selling toys, ever.
这只身材仅有妈妈的一个脚掌大的小龟，寿命约为150年。
The tortoise - who is barely the size of its mum's foot - can expect to live to 150 years.
“我没想到它是这样一个庞然大物，尤其是棱皮龟，”他说。
"I didn't consider that it's such a huge monster, especially the leatherback," he said.
在这值得纪念的一个星期中，我跟Alcedo的陆龟们住在一起。
For one memorable week, I lived among the tortoises of Alcedo.
雌菱皮龟在他们被孵化出来之后就开始了它们的第一次迁移。
Female leatherbacks begin their first migrations as newly hatched youngsters.
七只赤蠵龟在当地的一家救援中心的治疗之后被放归大海。
Seven loggerheads were released into the sea after receiving treatment at a local rescue centre.
在这场龟兔赛跑中，缓慢前行的欧洲也许会被证明是获胜的乌龟。
In that race, slow Europe may prove to be the tortoise that wins.
在IUCN的红色名录中，钻纹龟属于较低的风险，近危级别。
The IUCN lists the diamondback terrapin as a lower risk, near-threatened species.
他鉴定机场附近的这些海龟为钻纹龟，这种海龟在牙买加海湾很常见。
He identified the turtles as Diamondback terrapins, a species common to Jamaica Bay, which surrounds the airport.
他鉴定机场附近的这些海龟为钻纹龟，这种海龟在牙买加海湾很常见。
He identified the turtles as Diamondback terrapins, a species common to Jamaica Bay, which surrounds the airport.
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