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Scientists claim extinct ’Pac-man’ frog was dinosaur killer: study
恐龙杀手“吃豆蛙”
A new study has revealed on Thursday that a long extinct frog known as
Beelzebufo Ampinga, that lived in Madagascar over 68 million years ago, was a
dinosaur killer.
一项新的研究表明，一种早已灭绝并生活在6800万年前的马达加斯加的魔鬼蛙是恐龙杀手。
The claim stems from a study of the bite force of South American horned
frogs, otherwise known as Pacman frogs due to their similarity in looks to the
world-famous video game character of the same name. The study found that the
popular frogs in question, have a bite strength of 30 newtons (N), or 3 kg,
along with a 4.5 centimetre head width.
这一说法源于对南美角蛙咬合力的研究，因为它们在外形上与世界闻名的同名视频游戏角色相似，因此被称为“吃豆蛙”。研究发现，大多数调查中的青蛙，有30牛顿(N)的咬合力，或者3公斤，头有4.5厘米宽。
"Unlike the vast majority of frogs which have weak jaws and typically
consume small prey, horned frogs ambush animals as large as themselves," Marc
Jones, researcher at the University of Adelaide’s School of Biological Sciences
said on Thursday.
周四，阿德莱德大学生物科学学院的研究员马克琼斯表示:“与绝大多数蛙类的情况不同，这些蛙类的下颌通常都很弱，它们通常会捕食小型猎物，而角蛙则会捕食和自己一样大的生物。”
This includes other frogs, snakes, and rodents. And their powerful jaws
play a critical role in grabbing and subduing the prey.
这其中也包括其他青蛙、蛇和啮齿动物。它们强有力的下颚在捕食和征服猎物方面起着至关重要的作用。
Jones said that the data could then be scaled up to the size of the extinct
Beelzebufo frog which would result in a bite strength of 2,200 N, which is on
par with some of the fiercest predators currently on the planet - such as wolves
and tigers. "At this bite force, Beelzebufo would have been capable of subduing
the small and juvenile dinosaurs that shared its environment." Jones said.
琼斯说，这些数据可以延伸到灭绝的魔鬼蛙的身上，那它就会拥有2200牛的咬合力，与目前地球上最凶猛的肉食动物——比如狼和老虎——的数量相当。在这种咬合力的作用下，魔鬼蛙能够征服那些在他周围的小型恐龙和幼龙。”琼斯说。
"This is the first time bite force has been measured in a frog," Kristopher
Lappin, a professor of Biological Sciences at California State Polytechnic
University, and joint researcher on the project said on Thursday.
周四，加州理工大学生物科学教授兼该项目的联合研究员说到：“这是第一次在青蛙身上测试咬合力。”
"Speaking from experience, horned frogs have quite an impressive bite, and
they tend not to let go. The bite of a large Beelzebufo would have been
remarkable, definitely not something I would want to experience firsthand."
“从以往的经验来看，角蛙有相当大的咬合力，而且它们不会放开。一只大的魔鬼蛙的咬合力是值得我们关注的，谁也不想亲身体验这种咬合力。”
The Beelzebufo - also known as the "devil frog," "devil toad," and "frog
from hell" - is said to have been 41 centimetres in length, and weighed in at
over 4.5 kilograms, making it larger than any other frog known to man.
被称为“魔鬼蛙”、“魔鬼蟾蜍”和“地狱之蛙”的魔鬼蛙(Beelzebufo)据说长41厘米，重达4.5公斤，比人类所知的其他青蛙都要大。
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发表于 2017-10-11 19:53:18