Freshwater species: prey and predator fish such as perch and pike.
蜘蛛无一例外地都是掠食性动物。
Spiders of all kinds are exclusively predators.
他们搬到完全沉默,直线,掠食的凶猛朝着他们的目标。
They moved in utterly silent, straight-lined, ravening ferocity toward their target.
特别是,安全部队的任务是保护平民,而非掠食平民。
In particular, security forces are mandated to protect,not prey upon, the civilian population.
他把印第安人和狼作比较:“两者都是掠食的野兽,仅仅在形状上不同。
He compared Indians to wolves,"both being beasts of prey, tho' they differ in shape.".
我有时把这些不幸的人描绘成男人和女人被掠食的鸟啄食致死。
I sometimes picture these unfortunates as men andwomen being pecked to death by predatory birds.
华盛顿曾把印第安人与狼进行比较:“两者都是掠食的野兽,仅仅在形状上不同。
He compared Indians to wolves,‘both being beasts of prey, tho' they differ in shape.'.
许多掠食性动物,例如:猫头鹰、狮子,它们依靠黑暗的掩护,只需微弱的月光就能进行捕猎。
Many predators, like owls and lions, rely on the cover of darkness with just a bit of moonlight to hunt effectively.
他还将印第安人和狼相互比较,称“两者都是掠食的野兽,仅仅在形状上不同”。
He compared Indians to wolves,‘both being beasts of prey, tho' they differ in shape.'.
在毛利人和欧洲人定居新西兰以后,他们开始猎杀鸟类,并引进了老鼠和白鼬等掠食性动物。
As Maori and Europeans settled in New Zealand,they hunted birds and brought in predators including rats and possums.
华盛顿都认为印第安人和狼“都是掠食的野兽,仅仅在形状上不同”。
George Washington said,“Indian'sand wolves are both beasts of prey, tho' they differ in shape.”.
虽然金雕及赤狐有时会掠食松貂,但人类才是它们最大的威胁。
Although they are preyed upon occasionally by golden eagles and by red foxes, humans are the largest threat to pine martens.
华盛顿曾把印第安人与狼进行比较:“两者都是掠食的野兽,仅仅在形状上不同。
George Washington compared FirstNations Peoples to wolves,"both being beasts of prey, although they differ in shape.".
浅层掠食鱼类、中层掠食鱼类以及浅海中上层资源和深海资源,都呈现出相似的趋势。
Top predators, medium-level predators, as well as sub-surface pelagic and deep-sea resources, show similar trends.
华盛顿曾把印第安人与狼进行比较:“两者都是掠食的野兽,仅仅在形状上不同。
Washington at a later date compared theAmerican Indians with wolves:“Both being beast of prey, tho' they differ in shape.”.
岛屿更容易受到入侵,因为缺少天然竞争对手和在当地生态系统中控制种群的掠食鱼。
Islands are moreprone to invasions because of the lack of natural competitors and predators that control populations in their native ecosystems.
然而,掠食性草蛉幼虫以中毒的毛虫为食,但并无严重不良后果,因为它们有自己的解毒机制。
Nevertheless, predatory lacewing larvae feed on poisoned caterpillars without serious negative consequences, because they have their own detoxification mechanism.
动物一旦被缠绕,就可能溺水、捕获食物或躲避掠食动物的能力受损,或因所附残块磨擦或划破而受伤。
Once an animal is entangled, it may drown,have its ability to catch food or to avoid predators impaired, or incur wounds from the abrasive or cutting action of attached debris.
In addition, overfishing tends to lead to decline in these large predatory fish so that the relative numbers of low trophic-level small fish and invertebrates increases.
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