60秒科学:Dragon's Bite Bloodier Than Believed
The Komodo dragon is the largest living lizard 1 and a fearsome predator 2. It’s long been thought that some of its hunting prowess was due to a mouth teeming 3 with bacteria. An attack that didn’t immediately kill the dragon’s victim—often a deer, but sometimes a person—would cause fatal bacterial 4 infections. But a report released May 18th by the Proceedings 5 of the National Academy of Sciences finds a more likely cause of death.
The animal has evolved a “sophisticated combined-arsenal killing 6 apparatus 7.” First, the animal has razor-sharp serrated teeth—perfect for tearing flesh and causing massive wounds. But, wait, there’s more. When the researchers performed an MRI of a dragon, they found in its jaws 8 what they called the most structurally 9 complex reptile 10 venom 11 gland 12 known. The gland has openings between the lizard’s teeth and releases chemicals that both dilate 13 blood vessels 14 and prevent blood clotting 15. The inevitable 16 result is massive blood loss. This new information thus helps to clean up the foul-mouthed reputation of the Komodo dragon. But it’s little solace 17 for its unfortunate prey 18.
—Adam Hinterthuer
- A chameleon is a kind of lizard.变色龙是一种蜥蜴。
- The lizard darted out its tongue at the insect.蜥蜴伸出舌头去吃小昆虫。
- The final part of this chapter was devoted to a brief summary of predator species.本章最后部分简要总结了食肉动物。
- Komodo dragon is the largest living lizard and a fearsome predator.科摩多龙是目前存在的最大蜥蜴，它是一种令人恐惧的捕食性动物。
- The rain was teeming down. 大雨倾盆而下。
- the teeming streets of the city 熙熙攘攘的城市街道
- Bacterial reproduction is accelerated in weightless space. 在失重的空间，细菌繁殖加快了。
- Brain lesions can be caused by bacterial infections. 大脑损伤可能由细菌感染引起。
- He was released on bail pending committal proceedings. 他交保获释正在候审。
- to initiate legal proceedings against sb 对某人提起诉讼
- Investors are set to make a killing from the sell-off.投资者准备清仓以便大赚一笔。
- Last week my brother made a killing on Wall Street.上个周我兄弟在华尔街赚了一大笔。
- The school's audio apparatus includes films and records.学校的视听设备包括放映机和录音机。
- They had a very refined apparatus.他们有一套非常精良的设备。
- The antelope could not escape the crocodile's gaping jaws. 那只羚羊无法从鱷鱼张开的大口中逃脱。
- The scored jaws of a vise help it bite the work. 台钳上有刻痕的虎钳牙帮助它紧咬住工件。
- The house roof was (structurally) unsound. 这屋顶（结构）不牢固。
- Pinhole on shot-hole damage is never structurally significant. 针孔和蛀洞所造成的危害对结构的影响不大。
- The frog is not a true reptile.青蛙并非真正的爬行动物。
- So you should not be surprised to see someone keep a reptile as a pet.所以，你不必惊奇有人养了一只爬行动物作为宠物。
- The snake injects the venom immediately after biting its prey.毒蛇咬住猎物之后马上注入毒液。
- In fact,some components of the venom may benefit human health.事实上，毒液的某些成分可能有益于人类健康。
- This is a snake's poison gland.这就是蛇的毒腺。
- Her mother has an underactive adrenal gland.她的母亲肾上腺机能不全。
- At night,the pupils dilate to allow in more light.到了晚上，瞳孔就会扩大以接收更多光线。
- Exercise dilates blood vessels on the surface of the brain.运动会使大脑表层的血管扩张。
- The river is navigable by vessels of up to 90 tons. 90 吨以下的船只可以从这条河通过。 来自《简明英汉词典》
- All modern vessels of any size are fitted with radar installations. 所有现代化船只都有雷达装置。 来自《现代汉英综合大词典》
- The study was also based only on the one anti-clotting drug. 所用抗血栓药物也仅限于一种。 来自互联网
- A plasma protein that is converted into thrombin during blood clotting. 凝血原酶一种血浆蛋白质，在血液凝聚时转化成凝血''。'酵'。''''。'素'。''。 来自互联网
- Mary was wearing her inevitable large hat.玛丽戴着她总是戴的那顶大帽子。
- The defeat had inevitable consequences for British policy.战败对英国政策不可避免地产生了影响。
- They sought solace in religion from the harshness of their everyday lives.他们日常生活很艰难，就在宗教中寻求安慰。
- His acting career took a nosedive and he turned to drink for solace.演艺事业突然一落千丈，他便借酒浇愁。