Targland's officials predict that these measures will be adequate, since it is difficult to collect the tortoises without a vehicle.

塔格兰德的官员预测这些措施将是足够的，因为没有交通工具的话，很难收集这些乌龟。

youdao

For one memorable week, I lived among the tortoises of Alcedo.

在这值得纪念的一个星期中，我跟Alcedo的陆龟们住在一起。

youdao

Though the tortoises are enormous, and the differences between the species noticeable, the concept of natural selection is not written out in neat script on their carapaces for the reading.

尽管这里的乌龟非常多，并且跟其它的物种有著明显的区别，自然选择的概念也没有字迹工整的刻写在它们的龟壳上供人阅读。

youdao

Scientists thought George would be more closely related to the females from Isabela than to other Galapagos tortoises.

VOA: special.2009.12.16

She illustrates the unusual tortoises, birds and lizards that Darwin studied in the Galapagos Islands.

VOA: special.2009.02.27

There,he saw giant tortoises and noted that the reptiles were different on each island.

VOA: special.2009.02.25

"When they get scared, they pee themselves, " Mr. Henen said, referring to the tortoises.

WSJ: An Army of Biologists Are on Nature Patrol at Military Bases

The tortoises themselves used to be carried on board to serve as living larders.

BBC: Why such a fuss about extinction?

This speeds up the tortoises and holds back the hares.

ECONOMIST: World economy