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VOA慢速英语(翻译+字幕+讲解):科学家发现1.1亿年前恐龙的最后一餐

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Scientists Study Dinosaur’s Last Meal
Around 110 million years ago, a dinosaur ate some plants, in what is now western Canada, before suddenly dying.
That creature is now giving important information about ancient plant-eating dinosaurs. Scientists reported recently that fossilized contents of the creature's stomach were found along with its skeleton.
The fossils were discovered in the Canadian province of Alberta. They are said to be the best-preserved remains of any plant-eating dinosaur. The stomach contents even show the cellular structure of leaves from the plants the dinosaur ate.
Caleb Brown is a paleontologist at the Royal Tyrell Museum of Paleontology in Alberta. He was the lead writer of a research report that appears in the online publication Royal Society Open Science.
Brown noted that direct evidence of the diet of plant-eating dinosaurs "is very rare."
The creature was about 5.5 meters long, weighed at least a ton and was a member of a group called nodosaurs. Its name is Borealopelta markmitchelli.
It had a wide body and a small head. Its body had bony skin and a large spike on each shoulder.
The creature's stomach had leaves from a kind of fern, as well as very few leaves of different kinds of evergreens. Charcoal, a black material left after things are burned, was also found in its stomach. To researchers, that finding suggests the dinosaur had been eating in an area that had recently had a fire.
Scientists also reported finding many gastroliths, or gizzard stones. These are objects swallowed by modern birds and other animals to help the stomach break down food.
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重点单词   查看全部解释    
swallow ['swɔləu]

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n. 燕子,吞咽,一次吞咽的量
vt. 吞下,

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ruthless ['ru:θlis]

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adj. 残忍的,无情的

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cellular ['seljulə]

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adj. 细胞的,松织的
n. 手机

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shoulder ['ʃəuldə]

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n. 肩膀,肩部
v. 扛,肩负,承担,(用肩

 
evidence ['evidəns]

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n. 根据,证据
v. 证实,证明

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skeleton ['skelitn]

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n. 骨架,纲要,骨骼,骨瘦如柴的人或动物,家丑

 
fern [fə:n]

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n. 羊齿植物,蕨

 
paleontologist [,pæliɔn'tɔlədʒist]

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n. 古生物学者 =palaeontologist

 
rare [rɛə]

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adj. 稀罕的,稀薄的,罕见的,珍贵的
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