英语听力：2013-07-05 《恐龙的战争》3 顽强防御—9
时间：2014-02-13 06:25:19
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（单词翻译）
The tip is designed not the split on impact. It absorbs the stress of all that raw power the hammer gives because it’s not solid bone. Instead, it’s honeycombed with soft tissue, marrow1, blood and fact. Ankylosaurus combines steel-like protective plates with a powerful offensive weapon. The result—a creature with few rivals over more than 100 million years of evolution.
But some dinosaurs don’t rely on body armor and weapons for
defense4. They have an
entirely5 different strategy—grow bigger, much, much bigger.
Montana, America. It’s not called the Wild West for nothing. Hungry
predators6 are everywhere. In response,
prey7 developed an incredible array of
defensive8 strategies, strategies that don’t rely on intelligence, but on physical traits. Sauroposeidon is a
gargantuan9 beast, growing to 50 tons or more.
Sauroposeidon was one of the largest animals that ever lived on land.
If you’re gigantic, there are fewer and fewer predators that can attack you.
So getting big is the only game in town.
A
fully10 grown Sauroposeidon is 19 meters tall and almost 30 meters long.
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