一只金刚鹦鹉从栖枝上冲他尖叫。
鸟儿栖在树上。
关于鸟类飞行的起源，传统上提出了两种对立的假设：“地栖说”和“树栖说”。
Two opposing scenarios, the "arboreal" hypothesis and the "cursorial" hypothesis, have traditionally been put forward concerning the origins of bird flight.
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?
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.
可以肯定的是，这些水陆两栖物种的数据出现在接近三角坐标中间的位置，位于水栖海龟和陆栖乌龟的坐标点之间。
Sure enough, these amphibious species show up on the triangular graph approximately half way between the "wet cluster" of sea turtles and the "dry cluster" of land tortoises.
大致说来，犀牛是一种定栖动物。
罗伊兹海角群栖地的阿德利企鹅。
蟾蜍和青蛙都是两栖动物。
栖在树枝上的红脚鲣鸟。
最初的飞行动物是首先从树梢滑翔到地面的树栖动物吗？
Were the first flyers arboreal creatures that initially glided from tree tops to the ground?
在印度，大量的栖地流失造成孟加拉虎的数量持续减少。
In India, massive habitat loss continues to devastate Bengal tiger populations.
北美两栖类监测计划是美国最大的青蛙计数系统。
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.
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.
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.
但是其它因素也会带来影响：栖地的流失、污染、疾病和入侵的物种。
But other factors have also had an impact: habitat loss, pollution, disease and invasive species.
世界上有六千种两栖动物，其中多达一半的两栖动物濒临灭绝。
Up to half of the world's 6, 000 amphibian species are thought to be in danger of extinction.
在其他海带品种中，羊栖菜(hijiki)是值得注意的。
库克湾是白鲸的栖生地，这种鲸将有可能很快成为濒临灭绝物种。
The inlet hosts beluga whales, which could soon be added to the endangered species list.
把摩托车改成水陆两栖车驶进下龙湾，对度假者来说是有点过分了。
Converting the bikes to amphibious vehicles to explore Halong Bay might be a step too far for a holiday.
塔特索尔说，为在地面直立行走，树栖灵长类动物可能已被“预先准备好”。
Tattersall says it makes sense that arboreal primates may have been "primed, " for upright walking on the ground.
登陆：两栖大巴刚刚进行了一次成功的试航，它正缓缓地驶出克莱德河。
Land ahoy: the amphibious bus emerges from the River Clyde after a successful test run.
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.
早期的陆地脊椎动物、早期的两栖动物，还有鳄鱼和恐龙的近亲也是如此。
This is also the same game that early land vertebrates, early amphibians and early relatives of crocs and dinosaurs were playing.
早期的陆地脊椎动物、早期的两栖动物，还有鳄鱼和恐龙的近亲也是如此。
This is also the same game that early land vertebrates, early amphibians and early relatives of crocs and dinosaurs were playing.
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