Big Dinosaur from Italy Got Burial at Sea

2018-12-31

00:00 / 00:00
复读宝 RABC v8.0beta 复读机按钮使用说明
播放/暂停
停止
播放时:倒退3秒/复读时:回退AB段
播放时:快进3秒/复读时:前进AB段
拖动:改变速度/点击:恢复正常速度1.0
拖动改变复读暂停时间
点击:复读最近5秒/拖动:改变复读次数
设置A点
设置B点
取消复读并清除AB点
播放一行
停止播放
后退一行
前进一行
复读一行
复读多行
变速复读一行
变速复读多行
LRC
TXT
大字
小字
滚动
全页
1
  • Scientists are studying fossils of a large meat-eating dinosaur they describe as interesting, both in life and in death.
  • 2
  • The dinosaur is said to have lived and hunted 198 million years ago in what is now northern Italy.
  • 3
  • The fossils were discovered in 1996 close to the village of Saltrio, near Milan, in Italy's northern Lombardy area.
  • 4
  • They were found in an area where miners cut rock to use for building.
  • 5
  • This led to a long, difficult process of removing the creature's remains from the surrounding rock.
  • 6
  • The scientists reported that the dinosaur, called Saltriovenator zanellai, weighed at least one ton and was 7.5 meters long.
  • 7
  • They said this means that during the period when it lived, Saltriovenator was the largest-known meat-eating dinosaur that had ever existed.
  • 8
  • Its death also was noteworthy.
  • 9
  • After dying, Saltriovenator somehow floated into the sea and sank to the bottom.
  • 10
  • There the remains provided meals to numerous sea creatures before fossilizing, the researchers said.
  • 11
  • The bones show marks likely left by attacking sharks and fish.
  • 12
  • They also show signs of feeding by smaller creatures, such as sea urchins.
  • 13
  • And there are small holes in the bone apparently left by even smaller marine worms.
  • 14
  • "This is absolutely unique," said Cristiano Dal Sasso of Milan's Natural History Museum.
  • 15
  • In scientific writings, he said, there are reports of some dinosaur bones being attacked on land by other animals and, more rarely, insects.
  • 16
  • "At least three kinds of marine animals left those traces on the bones of Saltriovenator," he added.
  • 17
  • Dal Sasso led the researchers. Their findings were published earlier this month in the scientific journal PeerJ.
  • 18
  • Saltriovenator is the second dinosaur of its kind ever found in Italy.
  • 19
  • It combined the qualities of early meat-eating dinosaurs with those of more developed ones.
  • 20
  • The name Saltriovenator means "hunter from Saltrio." The creature walked on two legs.
  • 21
  • Each hand had four fingers, three of which possessed claws.
  • 22
  • Its head was about 80 centimeters long, while its mouth had sharp teeth.
  • 23
  • The creature was about 24 years old at the time of death, and still not fully grown.
  • 24
  • It lived in a coastal environment and likely hunted plant-eating dinosaurs and possibly smaller meat-eating dinosaurs, the researchers said.
  • 25
  • Dinosaurs are said to have first appeared on Earth about 230 million years ago during what is known as the Triassic Period.
  • 26
  • Scientists say the earliest meat-eating dinosaurs were less noticeable than larger non-dinosaur predators that died off by the end of the period.
  • 27
  • With the competition gone, meat-eating dinosaurs increased in size during Earth's Jurassic Period.
  • 28
  • I'm George Grow.
  • 1
  • Scientists are studying fossils of a large meat-eating dinosaur they describe as interesting, both in life and in death.
  • 2
  • The dinosaur is said to have lived and hunted 198 million years ago in what is now northern Italy.
  • 3
  • The fossils were discovered in 1996 close to the village of Saltrio, near Milan, in Italy's northern Lombardy area. They were found in an area where miners cut rock to use for building. This led to a long, difficult process of removing the creature's remains from the surrounding rock.
  • 4
  • The scientists reported that the dinosaur, called Saltriovenator zanellai, weighed at least one ton and was 7.5 meters long. They said this means that during the period when it lived, Saltriovenator was the largest-known meat-eating dinosaur that had ever existed.
  • 5
  • Its death also was noteworthy.
  • 6
  • After dying, Saltriovenator somehow floated into the sea and sank to the bottom. There the remains provided meals to numerous sea creatures before fossilizing, the researchers said.
  • 7
  • The bones show marks likely left by attacking sharks and fish. They also show signs of feeding by smaller creatures, such as sea urchins. And there are small holes in the bone apparently left by even smaller marine worms.
  • 8
  • "This is absolutely unique," said Cristiano Dal Sasso of Milan's Natural History Museum.
  • 9
  • In scientific writings, he said, there are reports of some dinosaur bones being attacked on land by other animals and, more rarely, insects. "At least three kinds of marine animals left those traces on the bones of Saltriovenator," he added.
  • 10
  • Dal Sasso led the researchers. Their findings were published earlier this month in the scientific journal PeerJ.
  • 11
  • Saltriovenator is the second dinosaur of its kind ever found in Italy. It combined the qualities of early meat-eating dinosaurs with those of more developed ones.
  • 12
  • The name Saltriovenator means "hunter from Saltrio." The creature walked on two legs. Each hand had four fingers, three of which possessed claws. Its head was about 80 centimeters long, while its mouth had sharp teeth.
  • 13
  • The creature was about 24 years old at the time of death, and still not fully grown. It lived in a coastal environment and likely hunted plant-eating dinosaurs and possibly smaller meat-eating dinosaurs, the researchers said.
  • 14
  • Dinosaurs are said to have first appeared on Earth about 230 million years ago during what is known as the Triassic Period. Scientists say the earliest meat-eating dinosaurs were less noticeable than larger non-dinosaur predators that died off by the end of the period.
  • 15
  • With the competition gone, meat-eating dinosaurs increased in size during Earth's Jurassic Period.
  • 16
  • I'm George Grow.
  • 17
  • Will Dunham reported this story for the Associated Press. George Grow adapted his report for VOA Learning English. Mario Ritter Jr. was the editor.
  • 18
  • _________________________________________________________________
  • 19
  • ________________________________________________________________
  • 20
  • Words in This Story
  • 21
  • predator - n. something that gets food mainly by killing and eating other organisms
  • 22
  • claw - n. a part of an animal that is used for seizing and holding things
  • 23
  • absolutely - adv. completely or totally
  • 24
  • unique - adj. being without equal; special
  • 25
  • marine - adj. of or related to the sea
  • 26
  • fossil - n. mineral remains of an ancient animal or plant
  • 27
  • We want to hear from you. Write to us in the Comments Section.