少数顽强的物种消灭了许多地中海无脊椎动物。
A few hardy species wiped out many of the Mediterranean invertebrates.
对无脊椎动物猎物的化学分析显示，不同物种之间的营养成分存在显著差异；即使在种内，营养成分也可能有很大的差异。
Chemical analysis of invertebrate prey reveals remarkable variation in nutrient composition among species; even within species, nutrient composition may vary considerably.
近一个世纪前，生物学家发现，如果他们在无脊椎动物胚胎生命的早期阶段将其分成两部分，它会存活下来并发育成两个正常的胚胎。
Nearly a century ago, biologists found that if they separated an invertebrate animal embryo into two parts at an early stage of its life, it would survive and develop as two normal embryos.
这篇文章提出的脊椎动物的无氧能量储备总量与脊椎动物的体型成正比，是基于以下哪些假设？
The passage's suggestion that the total anaerobic energy reserves of a vertebrate are proportional to the vertebrate's size is based on which of the following assumption?
还有人认为，捕捞棘冠海星的脊椎动物和无脊椎动物捕食者可以降低死亡率、增加成年个体的数量。
Others have suggested that the harvesting of vertebrate and invertebrate predators of Acanthaster could have reduced mortality and caused increased abundance of adults.
事实上，海洋无脊椎动物不变的外壳是通过1亿年前的沉积物发现的。
Indeed, unaltered shells of marine invertebrates are known from deposits over 100 million years old.
人们在针叶树和某些其它树木的硬化树脂中发现了昆虫，甚至发现了小型无脊椎动物。
Insects and even small invertebrates have been found preserved in the hardened resins of conifers and certain other trees.
因此，它们需要这个中途停留的栖息地——浅滩、沙洲、安全、玉米和无脊椎动物——来完成年复一年的努力。
Therefore, they need the stopover habitat—the shallows, the sandbars, the security, the corn and invertebrates—to complete their arduous yearly cycle.
小鱼和无脊椎动物也以这些植物类生物为食，然后则是众所周知的小鱼吃虾米，大鱼吃小鱼。
Small fish and invertebrates also graze on the plant-like organisms, and then those smaller animals are eaten by bigger ones.
这些怪物不仅供养着植物，而且是由细菌、浮游生物和无脊椎动物组成的一个复杂的食物网。
The bugs sustain not only the plant, but an intricate food web of bacteria, plankton and invertebrates.
现在看起来这些以甲烷为基础的食物链和纯粹的无脊椎动物相比，更可能会延长生命树，可能这种情形已经持续了数百万年。
It now seems, though, that such methane-based food chains may stretch farther up the tree of life than mere invertebrates-and may have done so for millions of years.
每天早上，它们从广阔优美的波浪中起飞，飞到附近的田野，全力以赴地吃着收获者遗留下来的玉米和蚯蚓及其它无脊椎动物。
Each morning they rise up in vast, graceful waves and fly to fields nearby, where they spend their days assiduously feeding on waste corn the harvesters missed and earthworms and other invertebrates.
这种无脊椎动物以惊人的繁殖速度占领海洋，后分解为高浓度碳生物量，细菌难以有效吸收。
The invertebrates, populating the seas in ever-increasing numbers,break down into biomass with especially high levels of carbon, which thebacteria cannot absorb well.
神经生物学中有一个等级系统，无脊椎动物的研究不被看好，除了非常特殊的例子：枪乌贼巨大的轴突。
There was a hierarchical system in neurobiology, and working in invertebrate animals was not looked upon favorably, except in a very special case: the squid giant axon.
狮子鱼以小的鱼类，软体动物和无脊椎动物为食，足够将身体填至高达480克，在他们所居住的珊瑚礁大量杀死本地物种。
The lionfish gorge on small fish, mollusks and invertebrates, enough to fill out to as much as 480 grams and decimate local populations on the coral reefs they inhabit.
我放弃研究哺乳动物大脑的工作，转而研究无脊椎动物。他们认为，这是一个很大的退步。
Giving up my work in the mammalian brain to go work on invertebrates, they thought, was a major step backwards.
大部分在古生代岩层中发现的化石都是没有脊骨的无脊椎动物，例如珊瑚、软体动物和三叶虫。
Most of the fossils seen in Paleozoic rocks are invertebrate animals lacking backbones, such as corals, mollusks and trilobites.
海胆在海峡群岛附近的海底挥舞着它们的棘突。科学家最近发现这些没有眼睛的无脊椎动物可以用它们的刺上的探测光来看东西。
Sea urchins brandish their spines on the seafloor near the Channel Islands. Scientists recently discovered that the eyeless invertebrates "see" by detecting light with their spines.
“斯密·德斯，难道你不认为自己无规律的夜生活与你作为无脊椎动物研究领域的专家的声望成反比是具有讽刺意味的吗？”
"Smithers, don't you think it's ironic that your irregular night-time activities are in inverse proportion to your reputation as an expert in the area of invertebrate research?"
提到机场的位置对于本国的无脊椎动物非常重要…圣赫勒拿大概有400个物种在世界其它地方是没有的。
The site of the proposed airport is incredibly important for native invertebrate animals... St Helena has about 400 species that occur nowhere else in the world.
这个现象在无脊椎动物中已经广泛的被研究过，而且在马、牛和某些鹿中也有出现。
The phenomenon has been most extensively studied in invertebrates, but is also seen in horses, cows and some species of deer.
海胆以海藻和无脊椎动物为食——一项近期的研究发现它们牙齿磨礁石发出的声音会增加海洋的噪音。
Urchins feed on algae and invertebrates-a recent study found that the sound of their teeth scraping on reefs can cause a rise in ocean noise.
在无脊椎动物这一群体中，社会经验对雌性狼蛛择偶的影响可说是闻所未闻的。
The influence social experience has on the female Wolf spider's mating choice is almost unheard of among invertebrates.
这种防御机制已经为人所熟识了，而且在其他一些无脊椎动物中也有发现。但是目前还没有报道说明是什么使得它们形成这样的机制，也不知道这是否可以有效地反抗捕食者。
This is a recognised defence mechanism and has been mentioned in other invertebrates, but no one had published on what exactly makes them do it or whether it actually is effective against predators.
这种海洋无脊椎动物是海洋生物链中重要的一环。
The Marine invertebrates are important links in the Marine food chain.
节肢动物和轮虫(一种小无脊椎动物)在条件恶劣的时代可以进入假死状态。
Tardigrades and rotifers - small invertebrates - are among those that have evolved the ability to go into suspended animation in tough times.
这种和光合作用微生物的亲密共存现象曾被发现存在于无脊椎动物中，比如说珊瑚，但是从未在脊椎动物中发现过。
Such a close co-existence with a photosynthetic organism has previously been found in invertebrates, such as corals, but never in a vertebrate.
“情况不错”，这只史前无脊椎动物表示，在它胸尖有一组微小的六角形小孔用来探查他周围的环境。
"Things are looking mighty fine," announced the prehistoric invertebrate, taking measure of his surroundings through a series of small, hexagonal eyelets located at the tip of his thorax.
“情况不错”，这只史前无脊椎动物表示，在它胸尖有一组微小的六角形小孔用来探查他周围的环境。
"Things are looking mighty fine," announced the prehistoric invertebrate, taking measure of his surroundings through a series of small, hexagonal eyelets located at the tip of his thorax.
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