SSS 2008-12-19
时间：2018-12-02 作者：英语课 分类：Scientific American(十二)月
- 1 SSS 2008-12-19
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.
If you saw the movie March of the Penguins 1, or even the animated 2 film Happy Feet, you know that male penguins take their role as parents pretty seriously. Now, a study from Montana State University shows that being a dutiful dad is something even dinosaurs 4 did.
The scientists examined the fossilized remains 5 of three different kinds of two-legged dinosaurs, which are thought to be the ancestors of modern birds. They focused on fossils in which an adult animal was found perched atop a clutch of eggs. And they found that the creatures that died while sitting on a nest did not seem to be female. Lady birds store the minerals they need for building egg shells inside their hollow limb bones. But these dinos did not have that mineral-rich bone tissue, which suggests they were males, results that appear in the December 19th issue of the journal Science.
These dino dads were probably polygamous, the scientists say, because their bones were found on top of some pretty big clutches. So it seems they may have wooed multiple mates, and were then left in charge of a veritable dinosaur 3 day care center, filled with their various girlfriends’ eggs. Which they somehow apparently 6 kept from getting scrambled 7.
Thanks for the minute for Scientific American's 60-Second Science. I'm Karen Hopkin.
- Why can penguins live in cold environment? 为什么企鹅能生活在寒冷的环境中？ 来自《简明英汉词典》
- Whales, seals, penguins, and turtles have flippers. 鲸、海豹，企鹅和海龟均有鳍形肢。 来自《现代英汉综合大词典》
- His observations gave rise to an animated and lively discussion.他的言论引起了一场气氛热烈而活跃的讨论。
- We had an animated discussion over current events last evening.昨天晚上我们热烈地讨论时事。
- Are you trying to tell me that David was attacked by a dinosaur?你是想要告诉我大卫被一支恐龙所攻击？
- He stared at the faithful miniature of the dinosaur.他凝视著精确的恐龙缩小模型。
- The brontosaurus was one of the largest of all dinosaurs. 雷龙是所有恐龙中最大的一种。 来自《简明英汉词典》
- Dinosaurs have been extinct for millions of years. 恐龙绝种已有几百万年了。 来自《简明英汉词典》
- He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
- The remains of the meal were fed to the dog.残羹剩饭喂狗了。
- An apparently blind alley leads suddenly into an open space.山穷水尽，豁然开朗。
- He was apparently much surprised at the news.他对那个消息显然感到十分惊异。