Their natural predators have been killed off 它们的天敌被全部杀死。
The company is worried about takeovers by various predators. 公司担心被各种虎视眈眈的集团收购。
These small predators leap from rocks and numb their prey with their poisonous stings. 这些小型食肉动物跳下岩石并用他们的毒刺将猎物麻痹。
Researchers collected wild dragonfly larvae, and placed them in tanks with fish or insect predators. 研究人员们采集了野生蜻蜓的幼虫,把它们与鱼类或食昆虫的生物们放在一起饲养。
We call these animals predators. 我们称此类动物为食肉动物。
My tactic with conservation of predators is to take people to where they live. 我的肉食动物保育策略是:带人们到它们生活的地方去。
Animals and plants use defence to protect themselves against predators and weather. 动物植物用防御能力来保护自己免于捕食者和天气的对它们的伤害。
Young birds are very vulnerable to predators. 幼小的鸟易受食肉动物伤害。
Animals certainly rely on the known senses such as smell or hearing to avoid danger such as predators. 克莱夫·沃克这样说,他曾经写过数本关于非洲野生动物的书。一些动物确实是依靠嗅觉或听觉等人类已知的官能来躲避危险的,比如食肉动物。
Feeling ticklish is our built-in response to predators or threats, and combines the sensations of touch and pain. 怕痒是我们对侵扰者或威胁产生的内在反应,它使触觉和痛觉结合起来了。
Unlike baby komodos, the potato beetle's feces are actually poisonous to predators. 但是,与科莫多巨蜥幼蜥不同的是,薯虫的粪便对敌人来说是有毒的。
Like chili plants, tarantulas produce agony-inflicting toxins designed to repel would-be predators, researchers say. 同辣椒类的植物相似,狼蛛也能产生会引起不适反应的毒素来击退潜在的掠食者。
Predators? Were a threat to the herd. 食肉动物对牧群是个威胁。
When will new predators, parasites and competitors also move in? 新的捕食者、寄生生物、竞争者何时能够到达?
In many communities insects play a key role as herbivores and predators. 在许多群落中,昆虫作为植食动物和捕食者起着重要的作用。
They found big cats'feces a more effective deterrent than those of other predators. 他们发现,大型猫科动物的粪便当作遏止物比其他的掠食性动物的粪便更有效。
Snakes are not just predators: they are prey, and have inventive ways of defense. 蛇不仅是食肉动物,也是被掠食者,它们有自己独创的防御方式。
A savanna full of predators, after all, was not a place to get distracted. 毕竟,充满捕食者的热带稀树大草原并不是一个会让人分心的地方。
Pliosaurs are thought to have been ambush predators, using their giant flippers to launch ferocious attacks. 上龙被认为是一种埋伏型猎食者,使用它们巨大的鳍状肢发动凶猛的进攻。
They also float on the sea's surface, though the position makes them vulnerable to aquatic predators. 它们也会浮在海面,尽管这个位置会让它们易受到水生掠食者的攻击。
He denounced all landlords and money-lenders as evil predators. 他痛斥所有地主和放债者都是罪恶的剥削者。
Their wispy dorsal fins contain toxin-filled needles used to dissuade would-be predators. 它们的小束状的背鳍含有毒素-充满针刺过去常常劝阻将到的食肉动物。
Their prey is usually small fish or predators. 它们的猎物通常是小鱼或捕食者。
Predators or people close to wild animals, can be directly affected by the virus. 人猎食或亲近野生动物,可直接受到病毒感染。
Spiders may rely on camouflage to protect them from predators such as birds. 蜘蛛能依靠伪装保护自己免受如鸟一类的掠食者的威胁。
In predators that ate the fish, the chemical accumulated. 当捕食者吃了鱼后,有害化学物质在体内积累。
All animals instinctively respond to escape from predators and to preserve their lives. 所有的动物都会本能的逃避捕食者以保护自己的生命。
And also we could be returning potential seed dispersers, predators, preys, etc. 我们可能也同时保留了潜在的种子传播者、狩猎者或猎物等等。
Wolves are major predators of small mammals. 狼是哺乳类小动物的主要捕食者。
I suppose such fears reflect instincts that emerged to protect us against predators and starvation. 我想,这些担忧反映出了为保护我们自己不受掠夺者和饥饿威胁而出现的本能。