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The victim of the practical joke is referred to as "hunting the gowk"; the gowk is an extinct cuckoo bird.

你也许会说我贪心，但在纽约年薪100万才算是中产，本人的要求其实不高。

A large extinct ground sloth of the family Megatheriidae of the Miocene Epoch through the Pleistocene Epoch .

恐兽一种具有明显类似象的哺乳类动物恐兽，存在于中新世、上新世和更新世时代

A large extinct ground sloth of the family Megatheriidae of the Miocene Epoch through the Pleistocene Epoch.

爱因斯坦理论开创了物理学的新纪元。

A large extinct ground sloth.

已经灭绝的大型地面生活的树懒。

And (3) that side by side with this form of marriage a system of consanguinity was in force in the same islands which could only be explained through a still more primitive, now extinct, form of group marriage.

但是，除了这种婚姻形式，在这些岛屿上还存在一种只有用更古老而如今业已消失的群婚形式才能说明的亲属制度。

Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.

黄昏鸟是一种已经灭绝的不会飞翔的水鸟，生活在白垩纪晚期。

An extinct species of human beings, regarded as an ancestor of Homo sapiens.

直立人已灭绝的一个人种，被认为是人类的祖先

A member of the genus Homo,which includes the extinct and extant species of human beings.

人人属中的一支，它包括灭绝的及现存的人类

The IUCN's Red List of Threatened Species lists 29 species that have been flagged as possibly extinct; that group includes animals like Cuba's little earth hutia, a small rodent that hasn't been spotted in the wild in almost 40 years.

世界自然保护联盟的最高濒危物种列表中，29种物种被认为可能已经绝种。当中包括如古巴的小地硬毛鼠，一种40年来都没有在野外被观察到的细小啮齿类动物。

Ecotourism — sustainable travel that is built around observing wild animals, not disturbing them — provides vital revenue for many local communities in wildlife-rich areas. And a steady stream of tourists can help convince people in biological hotspots like Madagascar or the Brazilian Pantanal that the local wildlife is worth more alive than extinct. For visitors, the prize is a firsthand study of the extinction crisis: you can't really understand what the world is at risk of losing, until you've come eye-to-eye with an indri lemur or a ploughshare tortoise.

生态旅游--可持续发展旅游，比如观看野生动物，但不打扰他们--为野生动物集中地区提供保护资金，固定的旅游团体的观光也会帮助当地居民比如马达加斯加和巴西潘纳尔更确信保护野生资源的观念，对于游客来说最大的收获就是亲眼目睹了濒临灭绝的危机，只有你亲眼看到一只大狐猴或一只乌龟的照片你才知道世界面临着每时每刻都在消失一些物种的危机。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。