英语听力：2013-07-28 《恐龙的战争》3 顽强防御—19
时间：2014-02-13 08:27:05
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（单词翻译）
… populated by millions of odor receptors.
Complicated, crazy-straw,
tortuous1 nasal passageway that went from the
nostrils2, made several loops through the snout before it went down into the throat.
Ankylosaurus’ supersensitive nose can pick up a carnivore over 3 kilometers away.
If it could smell a Tyrannosaurus coming, it’s got an early warning, and so it can begin to react appropriately.
For a hungry T-Rex, it means a meal has simply vanished into thin air. Never underestimate a
vegetarian3.
Parasaurolophus and Sauroposeidon rely on the numbers to spot
predators4 before they attack. Ankylosaurus has an
armory5 of senses to keep carnivores at bay. But no matter how clever a herbivore may be or how many tools they have at the ready, sometimes their time is up.
For herbivores, keeping one step ahead of the competition is a never ending struggle.
T-Rex was designed by natural selection to overcome those formidable defenses.
Under the cover of darkness, a Tyrannosaurus Rex is on the hunt. Its
prey6 is Triceratops, 6 tons of muscle loaded with deadly
defensive7 weapons all mounted on an armored
skull8 that can turn instantly. But Triceratops has one major disadvantage. Its night vision is no match for a Tyrannosaur. T-Rex goes for the kill. Even so, taking on a healthy adult Triceratops is a huge risk. That is, if a T-Rex …
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