Human beings needed to use tools because they did not have sharp teeth like other meat-eating animals, such as lions and tigers.
人类需要使用工具，因为他们没有像其他食肉动物如狮子和老虎那样锋利的牙齿。
The struggle for existence occurs not in such fights, but in the competition for limited feeding areas and for the occupancy of areas free from meat-eating animals.
生存的斗争并不发生在这种争斗中，而是为了争夺有限的摄食区域，以及为了争夺没有食肉动物的领地。
These meat-eating fish have sharp teeth.
这些食肉鱼类牙齿锋利。
Early therapods, the group of dinosaurs that includes all meat-eating species from Velociraptor to Tyrannosaurus rex, gained ground and thrived.
早期的兽脚亚目食肉恐龙，包括从迅猛龙到霸王龙在内的所有肉食物种，抢占了地盘并茁壮成长。
The struggle for existence occurs not in fights, but in the competition for limited feeding areas and for the occupancy of areas free from meat-eating animals.
为生存而进行的斗争不是发生在战斗中，而是在争夺有限的觅食区和占用没有肉食动物的区域的竞争中。
Tyrannosaurus Rex was a large, meat-eating dinosaur.
霸王龙是一种巨大的食肉恐龙。
Quite simply, you can't be a meat-eating environmentalist.
很简单，你不能当吃肉的环保人士。
Some dinosaurs are meat-eating while some are grass-eating.
有的恐龙是食肉动物，而有一些则是食草动物。
I wasn't aware that meat-eating beetles existed, but there you go.
我不知道还有吃肉的甲虫，但你瞧好吧。
We wonder what the best vegetarian option for non- meat-eating iPhone users might be.
一些不吃肉但使用iPhone的用户的最好素食选择是什么呢，我们对此很好奇。
The bones actually belonged to an ancient meat-eating dinosaur named Sinosauropteryx prima.
这些骨头其实是古代一种名叫中华鸟龙的肉食恐龙的化石。
Comparison with a control group of meat-eating dogs would render this study even more meaningful.
如果和食肉的对照组宠物狗进行比较，这个调查将会更有意义。
PETA criticised Gore for being a "meat-eating environmentalist" and urged him to go vegetarian.
善待动物组织批评戈尔是一位“肉食主义的环保主义者”并要求他去做素食主义者。
Elephants were the original source, but the business has since expanded to other non-meat-eating animals.
大象是原始来源，但是该业务已经扩展到其它草食性动物了。
Other anthropologists think it's because meat-eating isn't the key at all, that the real key is cooked tubers.
另外一些人类学家认为这是由于食肉并不是关键所在，真正的关键是做熟的块茎。
The laughing, or spotted, hyena of Africa is not only meat-eating but will also eat any "garbage" it happens upon (1).
非洲的发笑鬣狗，或斑点猎狗，不仅吃肉，而且会吃任何它们偶然发现的“垃圾”。
The bird probably also spent a lot of time running or flying away from the numerous meat-eating dinosaurs from the area.
这种鸟可能也要花费大量时间奔跑或飞翔以躲避此地区大量的肉食性恐龙。
Paleontologists believe the meat-eating theropod dinosaur was light, agile and very fleet of foot, with three large slashing claws on each hand.
古生物学家认为这两种食肉类恐龙轻巧、灵活、速度快，而且每个蹄子有三个巨大锋利的爪子。
CONCORDIA — Whitney Hillman already considered herself a "borderline vegetarian," limiting her meat-eating to chicken, pepperoni — and, of course, bacon.
肯高迪亚·惠特尼·希尔曼早已把自己当成是一个“在素食主义边缘徘徊的人，”所食的肉食限于鸡，辣肠-当然还有，熏肉。
It is an established fact that, on average, it takes a significantly larger area of land to grow food for a meat-eating individual than for a vegetarian person.
一般而言，为供养一个食肉者而种植粮食所占土地的面积要明显大于一个素食主义者的，这是已定的事实。
The specimen is one of a "logjam" of fossils-including two meat-eating dinosaurs, a probable Stegosaurus, and four sauropods-found recently at a dig in Utah.
这块标本是一堆“混杂”化石的一部分- - -其中包括两条食肉恐龙，其中一条可能剑龙，和四条蜥脚类恐龙，这些化石是最近在犹他州的一次发掘中被发现的。
It's the same place where Hammer and colleagues found Antarctica's first dinosaur in 1990 — the 22-foot, meat-eating Cryolophosaurus, or "frozen crested reptile."
这是汉莫和他的同事在1990年发现南极的第一头恐龙——22英尺的食肉冰脊龙——的同一地点。
Fossilized bones that show evidence of human ancestor stone tool use and meat-eating push the earliest dates for those activities from about 2.5 million to 3.4 million years ago.
之前发现最早的人类关于石器使用和肉类食用的时间使250万年前，然而最新发现的化石有证据显示，这个时间有可能要被提前到340万年前。
Meat-eating has impacted the evolution of the human body, scientists reported today at the American Association for the Advancement of Science's annual meeting in Washington, d.c..
美国科学家最近发表的一份研究结果显示，吃肉这一习惯对人类身体的进化过程产生了巨大的影响。
The remains of a giant meat-eating sea monster that patrolled the oceans during the reign of the dinosaurs have been unearthed on an island in the remote Arctic archipelago of Svalbard.
一只在恐龙统治时期巡海的巨型食肉海怪遗骸已在北极偏远地区斯瓦尔巴群岛的一个小岛上出土了。
The remains of a giant meat-eating sea monster that patrolled the oceans during the reign of the dinosaurs have been unearthed on an island in the remote Arctic archipelago of Svalbard.
一只在恐龙统治时期巡海的巨型食肉海怪遗骸已在北极偏远地区斯瓦尔巴群岛的一个小岛上出土了。
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