SSS 2012-04-06
时间：2019-01-08 作者：英语课 分类：Scientific American(四)月
英语课
This is Scientific American 60 Second Science, I am Cythia Graber, this will just take a minute~
Many Christians 1 give up meat for Lent, a practice that indirectly 2 affects…hyenas 4, believe it or not.
In northern Ethiopia, hyenas have become accustomed to scavenging meat that humans throw away. However, Ethiopian Orthodox Christians go vegan for the 55 days before Easter.
Scientists wondered whether the human dietary change affected 5 the behavior of local hyenas. At three different sites where hyenas scavenge from humans, the researchers swept up hyena 3 droppings. They collected samples as the fast began, when it ended 55 days later and then again 55 days after the regular diet resumed.
Based on animal fur found in the scat, the researchers discovered that the hyenas hunt more during Lent, when meaty leftovers 6 from human meals are scarcer. Which is bad news for donkeys.
Before Lent, about 15 percent of hair in hyena scat samples came from hunted donkeys. During Lent, the number more than doubled. And donkey meals decreased again after the end of Lent. That’s when the people resume eating meat and the hyenas go back to scavenging free lunches—giving the hyenas the last laugh, while the donkeys breathe a sigh of relief.
Thanks for the minute for Scientific American 60 Second Science, I am Cynthia Graber.
n.基督教徒( Christian的名词复数 )
- Christians of all denominations attended the conference. 基督教所有教派的人都出席了这次会议。
- His novel about Jesus caused a furore among Christians. 他关于耶稣的小说激起了基督教徒的公愤。
adv.间接地，不直接了当地
- I heard the news indirectly.这消息我是间接听来的。
- They were approached indirectly through an intermediary.通过一位中间人，他们进行了间接接触。
n.土狼，鬣狗
- African hyena noted for its distinctive howl.非洲鬣狗，以其特别的嚎叫而闻名。
- The hyena's public image is not aided by its ridiculous appearance.鬣狗滑稽的外表无助于改善它在公众心中的形象。
n.鬣狗( hyena的名词复数 )
- These animals were the prey of hyenas. 这些动物是鬣狗的猎物。 来自辞典例句
- We detest with horror the duplicity and villainy of the murderous hyenas of Bukharinite wreckers. 我们非常憎恨布哈林那帮两面三刀、杀人破坏，干尽坏事的豺狼。 来自辞典例句
adj.不自然的，假装的
- She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
- His manners are affected.他的态度不自然。