However, the mouthparts used for getting blood are shorter than in today's female mosquitoes.

然而，用来吸血的口器比如今的蚊子的口器要短。

Scientists believe that insect hematophagy evolved from piercing-sucking mouthparts used to extract plant fluids but have difficulty studying this evolution due to the lack of insect fossil records.

科学家们认为，昆虫的噬血是由用于汲取植物液体的刺吸式口器进化而来的，但由于缺乏昆虫化石记录，很难研究这种进化。

There are nearly a million known insect species in the world, but most have one of just five common types of mouthparts.

世界上已知的昆虫物种有着数以百万种，然而多数昆虫都离不开五种最普遍的口器。

He's attached himself and his mouthparts have receded and merged into her, and their blood systems are now fused.

他依附在安康鱼身上，口器已退化身体，血液系统也与合到一起。

Early exoskeletons got fancier and we began to see animals with crushing mouthparts, pinchers, and full suits of armor.

早期的外骨骼变得更加华丽，我们开始看到动物长出破坏的口器、钳子和全套盔甲。

They either cleaned the wound using their mouthparts or amputated the limb, or leg, by biting it off.

它们要么用口器清理伤口，要么通过咬掉肢体或腿来截肢。

To researchers' surprise, the male mosquitoes had long mouthparts seen now only in females.

令研究人员惊讶的是，这两只雄蚊子的口器很长，现在只有蚊子才有长口器。

The features of an insect's mouthparts can help identify which order it belongs to, while also providing clues about how it evolved and what it feeds on.

而昆虫口器的特征就能帮助我们定义它属于哪一个目，同时也能告诉我们它如何进化以及它的食物来源。

You can find this mouthpart on ants from the Hymenoptera order, grasshoppers and crickets of the Orthoptera order, dragonflies of the Odonata order, and beetles of the Coleoptera order.

这样的口器你可以在膜翅目的蚂蚁，直翅目的蚱蜢，蜻蜓目的蜻蜓，和鞘翅目的甲虫身上找到。

They think that the mouthparts that were developed for getting blood meals were originally used to pierce plants to get nutritious fluids.

他们认为，为吸血而进化而来的口器最初是用来刺穿植物以获取营养液体的。

The chewing mouthpart is the most common.

咀嚼式口器是最常见的一种类型。

Biting flies within Diptera, like mosquitoes, horse flies, and deer flies, have a piercing-sucking mouthpart instead of the sponging mouthpart.

双翅目中会叮咬的昆虫，例如蚊子、马蝇、鹿虻、是有着刺吸式的口器而非舔吸式的。

Insects in the Hemiptera order have piercing-sucking mouthparts and include bed bugs, cicadas, aphids, and leafhoppers.

半翅类的昆虫就具有这样刺吸式的口器，其中包括臭虫、蝉、蚜虫、叶蝉。

It's also the most primitive — all other mouthparts are thought to have started out looking like this one before evolving into something different.

这也是最为原始的一种类型——其它所有的口器都被认为是从这一种的模样进化而来的。

They’re a motley crew, independently evolving similar mouthparts at least four times over the eons.

他们是一群杂牌军，在漫长的岁月里至少独立演化出四次相似的口器。

And while it's hard to catch an insect in the act of pollinating, the fossil record gives us several lines of indirect evidence of pollination, like specialized plant structures, specialized insect mouthparts, and pollen grains.

虽然很难捕捉到昆虫正在授粉的瞬间，但化石记录为我们提供几种间接证据，比如特化的植物结构、特化的昆虫口器以及花粉粒。

It’s also the most primitive— all other mouthparts are thought to have started out looking like this one before evolving into something different.

它也是最原始的——所有其他口器都被认为在进化成不同的东西之前开始看起来像这个。

The piercing-sucking mouthpart consists of a long, tube-like structure called a beak.

第二种是刺吸式口器，由一支叫做喙的长管组成。

Now, these beetles didn’t have long, tubular mouthparts.

现在，这些甲虫没有长而管状的 口器。

The first thing she does after hatching is stick her mouthparts into her host cactus and start feeding.

她孵化后的第一件事就是把口器插寄主仙人掌开始进食。