两栖动物的皮肤是透水的。
一些两栖动物通过在地下深处的休眠期内完成加速发育以适应干旱环境。
Some amphibians adapt to arid environments by completing accelerated development with resting stages deep underground.
一个类似的策略——加速发展与休息阶段相结合——也使两栖动物得以栖息在沙漠中。
A similar strategy—accelerated development combined with a resting stage—has also allowed amphibians to inhabit deserts.
为什么那位演讲者要选择这种两栖动物作为公众生物的代表呢？
Why does the speaker choose that amphibian as her representative of a public creature?
像大多数的两栖动物一样，它们从幼年的“蝌蚪”状态蜕变成成年的形式——蝾螈这个物种除外，众所周知，它一生都处于幼年状态。
Like most amphibians these begin life in a juvenile "tadpole" state, then metamorphose into the adult form — except for one species, the axolotl, which famously lives its entire life as a juvenile.
它所能捕食的猎物包括昆虫、小型哺乳动物、两栖动物以及可能生活在沼泽和森林后白垩纪的小型恐龙。
Among its prey would have been insects, small mammals, amphibians and possibly small dinosaurs that lived in the swamps and forests of the late Cretaceous.
所以爬行动物和两栖动物会感染上数以万计的真菌，而我们只会被几百种真菌侵害。
So tens of thousands of fungi can infect reptiles and amphibians, but we can only be invaded by a few hundred fungi.
“它们中几乎所有都是在城市里被遗弃的，”动物园两栖动物馆主任吴文春对《上海每日新闻报》说。
"Almost all of them were abandoned somewhere in the city," said Wu Weichun, the director of the zoo's amphibian department, to the Shanghai Dailynewspaper.
约有20%的海生群落以及多数类似哺乳类的生物，很多大型的两栖动物，和所有的非恐龙的祖龙都灭绝了。
About 20 percent of all Marine families went extinct, as well as most mammal-like creatures, many large amphibians, and all non-dinosaur archosaurs.
起初，天气乍凉的时候，这种两栖动物将自己埋在土壤里。
At first this amphibian deals with the cooler days by burying itself in the soil.
不过直到现在，研究者才认识到两栖动物的幼仔可能也会在水下发出声音。
Until now though, researchers did not realise that amphibian larva might also produce sounds underwater.
如某些两栖动物即使在完全成熟并已经度过水中生活的时期后仍然保留有鳃。
For example, certain amphibians retain fishlike gills even when fully mature and past their water-inhabiting period.
北美两栖动物监测中心是美国最大的青蛙统计机构。
The North American Amphibian Monitoring Program is the country's largest frog-counting system.
北美两栖动物监测中心是美国最大的青蛙统计机构。
The North American Amphibian Monitoring Program is the country’s largest frog-counting system.
在澳大利亚发现的388种哺乳动物中，78种被列为易危、濒危或野外绝灭，而近14%的两栖动物、5%的爬行动物及6%的鸟类则濒临灭绝。
Of the 388 mammal species found in Australia, 78 are listed as vulnerable, endangered or extinct in the wild while nearly 14% of amphibians, 5% of reptiles and 6% of birds are at risk of extinction.
海斯提到，出去气候变化，栖息地遭到破坏，物种入侵，阿特拉津的使用时导致两栖动物数量减少的另一元凶。
The results indicate atrazine could contribute to amphibian population declines, along with climate change, habitat loss and invasive species, Hayes said.
动物园的保护中心曾经尝试保存并从两栖动物的皮肤细胞繁育，但这确实是个棘手的工作。
The zoo's Institute for Conservation Research has experience preserving, and breeding from, amphibian skin cells. It is, however, a tricky business.
数以万计的真菌都能够感染爬行动物、两栖动物和其他冷血动物，但只有其中的几百种才对哺乳动物构成威胁。
Tens of thousands of fungal species infect reptiles, amphibians and other cold-blooded animals, but only a few hundred harm mammals.
现在，你已经了解拍摄爬行动物和两栖动物的小技巧，再在下面100幅绝妙的照片中汲取些灵感吧。
Now that you've read through our quick tips on shooting your own amazing reptile and amphibian photos, take in some incredible inspiration with the 100 photos below.
蟾蜍和其他两栖动物对环境化学的变化非常敏感，我认为它们应该能够感知到这些气体和带电粒子。
Toads and amphibians are very sensitive to changes in environmentalchemistry and I think these gases and charged particles could have beendetected by the toads.
科学家们推测它们应该是当时席卷整个两栖动物世界致命的蛙壶病菌的牺牲品。
Scientists believed it was probably a victim of the deadly chytrid fungus that has devastated amphibian populations around the world.
过去十年科学家发现了25%的两栖动物物种，与此同时，两栖动物数量在世界范围内却急剧下降。
Some 25 percent of all known amphibian species were discovered only over the last ten years, a period when their Numbers worldwide have been in desperate decline.
正是在此次灭绝之前，原始两栖动物第一次爬上了陆地。
Right before the extinction events, the first proto-amphibians made it onto shore.
Jensen博士说，我们没有培育两栖动物干细胞的经验，并且我们担心会杀死我们仅有的这百十个干细胞。
"We had no experience cultivating amphibian stem cells and were worried we would kill the few hundred that we had," says Dr Jensen.
然而到了1992年在公园中只观察到4种两栖动物，并且每种动物的数量都显著下降。
However, in 1992 there were only four species of amphibians observed in the park, and the Numbers of each species were drastically reduced.
在超过两百年的两栖动物研究历史中，这从未被报告过。
In more than 200 years of [amphibian research] this has never been reported.
1915年公园中有7中两栖动物，每种的数量都很丰富。
In 1915 there were seven species of amphibians in the park, and there were abundant Numbers of each species.
拍摄爬行动物和两栖动物的技巧。
拍摄爬行动物和两栖动物的技巧。
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