当这些三叠记时期的小鲨鱼们成型之后,它们就能捕食植物周围的小型无脊椎动物,茂密生长的植被还能保护它们免受其他狩猎者的袭击。
Once born the Triassic-era babies would've had their pick from a rich food supply of tiny invertebrates while dense vegetation offered protection from predators.
生物学上的假设包括生态变化,这些变化是由昆虫和开花植物之间的共同进化,或海洋中以海底生物为食的捕食者的进化所带来的。
Biological hypotheses include ecological changes brought about by the evolution of cooperation between insects and flowering plants or of bottom-feeding predators in the oceans.
今天,生物学家利用21世纪的工具来研究细胞和DNA,开始了解这些植物是如何捕食和消化的——以及这些奇异的适应性最初是如何产生的。
Today, biologists, using 21st-century tools to study cells and DNA, are beginning to understand how these plants hunt, eat and digest—and how such bizarre adaptations arose in the first place.
浮游动物(微小的海洋生物)通常吃浮游植物,而其本身又是小鱼和其它动物的捕食对象。
Phytoplankton are typically eaten by zooplankton - tiny marine animals - which themselves are prey for small fish and other animals.
生物学家认为这种植物进化出捕食的能力是适应潮湿、贫瘠土壤的一种途径。
Biologists suggest that the plants evolved the ability to capture prey as a way to adapt to living in moist, nutrient-poor soils.
当鸟类迁移,它们所捕食的昆虫,或是作为食物的各类植物却仍留在原处,这就有可能会扰乱当地数千年未曾改变的生态系统。
When birds move, the insects or plants they eat often do not, possibly upsetting ecosystems unchanged for thousands of years.
植物学家首次发现,这种植物是食肉性捕食者,它们捕杀昆虫是为了“给自己补充营养”。
Botanists have discovered for the first time that the plants are carnivorous predators who kill insects in order to "self-fertilise" themselves.
岗恩认为这些发现与有人称之为“植物可见性理论”(plantapparency theory)的解释相一致。这一理论认为最容易被看到的植物最有可能受到捕食者的攻击。
Gahn says these findingsare consistent with something called the “plant apparency theory, ”which states that the most readily seen plants are those that are mostlikely to be attacked by predators.
在人类历史早期,人们依靠捕食野生动物,或者采集野果或野生植物生存下来。
In the early days of human history, people survived by hunting wild animals, or gathering wild grains and plants for food.
作为一种精力旺盛的杂食动物,努纳大多依靠沼泽植物为生,但也会捕食小型两栖动物。
A vigorous omnivore, nunas feed mostly off swamp plants, though it will hunt down and feed on small amphibians.
长的植物提供了安全的巢穴,而田云雀发现在矮草丛中捕食昆虫更容易。
The long stuff provides secure nesting, while the pipits find it easier to find their insect prey in closer-cropped sward.
埋葬甲科昆虫多以动物尸体为食,也有捕食蜗牛、蝇蛆、蛾类幼虫或为害植物者。
Burying beetles usually feed on animal corpse, some species prey on snail, fly maggot and larvae of moths, and also some species bite plants.
大部分蟑螂喜欢更为传统的户外昆虫生活,它们可以帮助回收腐烂植被,帮植物授粉,甚至在一些情况下还会捕食害虫。
Most roaches prefer a more conventional insect life outdoors, where they help to recycle decaying vegetation, pollinate plants, and in some cases even prey on more harmful insects.
经初步识别,小麦茎基部的线虫中90%以上为腐生线虫,少数为植物寄生线虫和捕食线虫。
On the stem foots of wheat plant, more than 90% of the nematodes identified was saprophytic nematode, others were plant-parasitic nematode and predatory nematode.
食物链的链环是以植物为生的食草动物和捕食食草动物的食肉动物。
The links of the chain are formed by the herbivores that eat the plants and the carnivores that feed on the herbivores.
不管是刺抑或荆棘,都可以保护这些植物不被捕食者所猎食,同样,或许也能免于被那些寻找免费花束的情人所折断。
Both prickles and thorns protect the plant from predators, and, maybe, from lovers looking for a free bouquet.
这些动植物主体通过捕食关系构成食物链。
Predation relations link these agents to form the food chain.
据英国《每日电讯报》报道,英国植物学发现,包括西红柿和土豆在内的多种蔬菜其实都是“食肉”植物,它们捕食昆虫的技巧堪与捕蝇草比肩。
British botanists have discovered that many vegetables including tomato and potato are "carnivorous" predators who kill insects in order to self-fertilize, the Daily Telegraph reported.
据英国《每日电讯报》报道,英国植物学发现,包括西红柿和土豆在内的多种蔬菜其实都是“食肉”植物,它们捕食昆虫的技巧堪与捕蝇草比肩。
British botanists have discovered that many vegetables including tomato and potato are "carnivorous" predators who kill insects in order to self-fertilize, the Daily Telegraph reported.
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