研究人员观察到，一只鸟把一个啮齿动物钉到了一棵仙人掌上。
唯一的例外是一种不寻常的非洲啮齿动物，裸鼢鼠。
The only exception is an unusual African rodent, the naked mole rat.
他们的研究对象是草原田鼠，一种终生交配的小型啮齿动物。
Their study was conducted in the prairie vole, a small rodent that mates for life.
这项新的研究发现，70%的啮齿动物和灵长类动物的物种具有阑尾。
The new study found that 70 percent of rodent and primate groups have species with an appendix.
传统的实验是把一只啮齿动物放在一个温度为4摄氏度的寒冷房间里。
The classical experiment is placing a rodent in a cold room at 4 degrees Celsius.
对于那些不熟悉可爱的草原田鼠的人来说，这是一种在北美中部草原上发现的小型啮齿动物。
For those unfamiliar with the delightful prairie vole, it is a small rodent found in the grasslands of central North America.
它也可能发生在完全不相关的、争夺相同资源的组织中，比如以种子为食的啮齿动物和蚂蚁。
It may also occur among totally unrelated forms that compete for the same resource, such as seed-eating rodents and ants.
今年唯一被列入名单的哺乳动物是马达加斯加山鼠，一种生活在马达加斯加山区森林里的啮齿动物。
The only mammal added to the list this year was the Eastern Voalavo, a rodent that lives in the mountainous forests of Madagascar.
通过与啮齿动物争夺种子，黑蚂蚁有助于控制啮齿动物的数量，这些啮齿动物会对公众健康构成威胁。
By competing with rodents for seeds, black ants help control rodent populations that pose a public health risk.
许多昆虫占据着沼泽，以活或死的绳草组织为食，而红翼鸫、麻雀、啮齿动物、兔子和鹿直接以绳草为食。
Numerous insects occupy the marsh, feeding on living or dead cordgrass tissue, and redwing blackbirds, sparrows, rodents, rabbits, and deer feed directly on the cordgrass.
这只无所畏惧的啮齿动物证明了自己并不是胆小鬼，它向体型庞大的对手摆出了惊人的架势，并拒绝让步。
The fearless rodent proved he was no scaredy-cat as he astonishingly squared up to his large opponent and refused to budge.
有趣的是，对于啮齿动物这样的小型哺乳动物来说，岛屿法则被推翻了，因为在岛状环境下，巨大的体型是最受欢迎的。
Interestingly, the island rule is overturned for small mammals such as rodents, for which gigantism is favored under insular conditions.
例如，对动物的研究表明，老鼠在怀孕期间经历压力会导致胎儿表观遗传发生变化，进而导致啮齿动物在成长过程中出现行为问题。
Studies of animals, for example, have shown that when a rat experiences stress during pregnancy, it can cause epigenetic changes in a fetus that lead to behavioral problems as the rodent grows up.
科学家首次提出这个问题是在20世纪90年代中期。当时，研究人员偶然发现一种化学药剂，这种药剂在啮齿动物身上似乎可以发挥和热量限制相同的正面效果。
Scientists first posed this question in the mid-1990s, after researchers came upon a chemical agent that in rodents seemed to reproduce many of caloric restriction's benefits.
士的宁用于杀灭啮齿动物，而吡咯里西啶类生物碱则具有较强的杀菌活性。
Strychnine is used to kill rodents and pyrrolizidine alkaloids have significant activity against microbes.
它是啮齿动物。
保障食物原理啮齿动物和昆虫。
一些研究显示糖精和啮齿动物的癌症有关。
不过这些都是啮齿动物。
人类与啮齿动物的大脑具有相似的生理结构。
体温过热的啮齿动物干3个小时就得下班了。
有时我甚至享用小鸟、蜥蜴和象老鼠那样的啮齿动物。
Sometimes I even feast on small birds, lizards and rodents like mice.
这真的是怪兽，有点像啮齿动物，但长着恐龙一样的嘴巴。
This is an actual monster, some sort of rodent-like creature with a dinosaur beak.
因为想了解昆虫类群居啮齿动物信息的读者是非常有限的。
The audience that wants more information about insect-like collectivist rodents is going to be pretty limited.
实验鼠不是人类，啮齿动物和人类的大脑的组成是不一样的。
Lab rats are not humans, and not every brain, rodent or homo sapien, is wired the same.
在啮齿动物中，LL - 37一类的蛋白保护大脑不受感染。
In rodents, the protein that corresponds to LL-37 protects against brain infections.
红狼通常以白尾鹿，浣熊，野兔，海狸鼠以及其它啮齿动物为食。
Red wolves primarily prey on white-tailed deer, raccoons, rabbits, nutria and other rodents.
我们观察的结论是，高雌激素水平抑制了雌性啮齿动物的认知能力。
Our findings... show conclusively that high estrogen levels inhibit the cognitive ability in female rodents.
我们观察的结论是，高雌激素水平抑制了雌性啮齿动物的认知能力。
Our findings... show conclusively that high estrogen levels inhibit the cognitive ability in female rodents.
应用推荐