Now the picture is of an increasingly violent struggle to protect a 250m year old species.
目前的情况则是为保护这一寿命达250年之久的物种而开展的斗争正日益激烈。
The 125-million-year-old species Sinosauropteryx, for example, has bristles on its skin, and scientists found melanosomes in the tail bristles.
例如一亿二千五百万年前存活在世的中华龙鸟种群，全身长满刚毛，科学家们从它们尾部的刚毛处发现存在有黑素体。
New species of fauna populated the Mediterranean when the old migrants returned.
当“旧移民”返回地中海时，地中海又出现了新的动物物种。
Geigl and her colleagues looked at 3200-year-old fossil bones belonging to a single individual of an extinct cattle species called an aurochs.
盖格尔和她的同事们研究了3200年前的骨头化石，这些骨头属于一种已经灭绝的叫做欧洲野牛的种类。
These include the centuries-old custom of "bul", where leaders would call a temporary stop to fishing for key species in order to give fish stocks an opportunity to replenish.
这些传统包括几个世纪以来被称之为“bul”的旧习俗，领导人会要求暂停捕捞一些重要种类的鱼，给鱼类总储备量繁衍补充的机会。
Until relatively recently, the best clues about the factors involved in growing old came not from healthily aging humans but from other, decidedly less interesting species.
直到最近，有关涉及年龄增长因素的最佳线索不是来自健康的老年人，而是来自其它肯定不那么有趣的物种。
But old creatures, regardless of species, tend to be less agile than young ones, and more likely to suffer from arthritis, diabetes, cancer, heart disease, and mental confusion.
抛开物种不谈，任何生物一旦老去，就变得迟钝，易患关节炎、糖尿病、癌症和老年痴呆。
In the space of 30 years the old-growth chestnut forest in North America lost every specimen of a species — the mighty chestnut — that formerly constituted a significant hunk of the forest's mass.
在30年的生长中，北美的板栗林失去了物种——高大的栗树——的每个标本，这是以前板栗林中非常重要的一块。
Old Dominion University professor Kent Carpenter, director of a worldwide census of marine species, warned that if global warming continues unchecked, all corals could be extinct within 100 years.
世界海洋物种普查的负责人，奥多明尼昂大学教授KentCarpenter警告道，如果全球变暖持续不受干预，所有的珊瑚礁将在100年内灭绝。
Remove 200-year-old Amazon mahogany or Congolese sapele trees and the species may go locally extinct.
把亚马逊地区一片两百年的红木群或刚果地区的一片萨佩莱木群移走，当地物种有可能灭绝。
The galaxy is very old. Therefore it's more probable that there are intelligent species that are 10,000, 1 million or even 10 million years more advanced than us.
银河系的历史已经非常久远，所以很可能那些智能物种比我们先进了一万年，一百万年，甚至一千万年。
The galaxy is very old. Therefore it's more probable that there are intelligent species that are 10, 000, 1 million or even 10 million years more advanced than us.
银河系的历史已经非常久远，所以很可能那些智能物种比我们先进了一万年，一百万年，甚至一千万年。
Our species has always devised new tools and lamented the loss of old ways.
我们人类总能设计出新的工具，然后哀悼失去的古老方式。
Scientists have discovered the Old World's smallest species of frog living inside pitcher plants in the jungles of Southeast Asia's Borneo.
在东南亚婆罗洲的丛林里，科学家发现源自远古世界的体型最小的蛙类在捕虫草里栖息繁衍。
Selectively breeding a wild plant or animal species for certain desirable traits began as a fitful process of trial and error motivated by that age-old imperative: hunger.
为了某些可取的特性，人类选择性地繁育野生植物或动物物种，这一开始是一个断断续续的反复试验过程，驱动它的是由来已久的紧迫之事——饥饿。
The 35-year-old Endangered Species Act was designed to save animals from close-by threats such as hunting, trapping and logging.
濒临物种法案自颁布到现在已经过去35年了。该法案的目的在于保护动物免受捕猎、陷阱和伐木等近身危害。
This species is very widely distributed in tropical and warm regions of the Old World.
本种是在欧亚大陆的热带和温暖的地区里的广泛分布。
Russian fishermen on the Volga River catch around 20% of the world's black caviar, tearing it out of the bellies of giant sturgeon, a species as old as the dinosaurs.
俄国伏尔加河上的鱼民们提供世界上百分之二十的黑鱼子酱，他们从鲟鱼这种象恐龙一样古老的鱼种的肚子里将鱼子挤出。
The hardiest members of the species can live to be 2, 000 years old.
该树种中最强健的个体可以活到两千多岁。
The mare's secret code of honor is as old as horses themselves and is ultimately the species best kept secret.
母马的秘密代码的荣誉马匹本身一样古老的物种，并最终保存最好的秘密。
Over 250 years old, Kew Gardens spreads over 121 hectares, holding over one in eight of the known plant species in the world.
拥有250多年历史的邱园有121公顷左右大小，世界上八分之一的已知植物品种在这里都能找到。
And, in the long term, it matters little if one or two groups do disappear, because immigrants from better-faring patches will eventually re-establish the species' old haunts.
而且，从长期看来，就算物种的一两个亚种群消失了也无关紧要，因为那些来自食物充沛之“斑块”[1]的“新移民”最终将重建物种原有的生境。
True chameleons are found only in the tropical forests and jungles of the Old World, and nearly half of its species live on the African island of Madagascar.
真正的变色龙只有在旧世界的热带森林和丛林中才找得到，而几乎有半数的种类住在非洲的马达加斯加岛上。
Any of about 30 species of lizards (genus Varanus, family Varanidae), found in the Old World tropics and subtropics.
蜥蜴亚目巨蜥科巨蜥属爬虫类通称，约30种。产于东半球的热带和亚热带地区。好评(0)。
And meet Happy. A 34-year-old Asian elephant who is able to recognize herself in a mirror, suggesting the species is capable of self-awareness.
一件非常有趣的事， 一头34岁大的亚洲象竟能从镜子里认出自己。着暗示动物也有自我意识的能力。
A human being would certainly not grow to be seventy or eighty years old if this longevity had no meaning for the species.
如果长寿对于人类物种没有意义，人就肯定不会活到七十或八十岁。
The peaceful Ithorians species have been a source of many great Jedi Knights of old, since their natural attunement to nature has given them a predilection for Force-sensitivity.
和平的伊索人一直是伟大绝地武士辈出的种族，因为他们与生俱来的天人合一特质让他们更容易对原力敏感。
This is an indigenous species which is a not very conspicuous element of old pastures, especially on heavy land.
这是一种本地草种，在老草场中，特别是在粘性土地上，不甚引人注目。
When human infants are a year old, they favor place-based strategies like all the other great ape species do.
当人类婴儿一岁的时候，他们和其它大型猿种一样偏爱基于位置的策略。
When human infants are a year old, they favor place-based strategies like all the other great ape species do.
当人类婴儿一岁的时候，他们和其它大型猿种一样偏爱基于位置的策略。
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