标签:predators 相关文章
托福听力作为整场托福考试中耗时最长、脑力消耗强度最大的部分,一直是大多数考生出国留学征程上的拦路虎。面对无论是相对接地气的对话部分(conversation)还是绝对高大上的讲座部分(lect
Jim在走廊上遇到同事Claire,跟Claire打招呼。 Jim: Hey Claire, you've been really quiet these last few days. Is something wrong? Claire: I've been really stressed. It's the end of the year and I've got so much stuff to do! I feel like I'm
Almost all the evidence, I think, points to it being a juvenile, and almost certainly a juvenile T-Rex. 我觉得几乎所有证据都说明这是一头幼龙,基本能肯定是只小霸王龙。 However, there is some evidence in terms of CAT scan
With the breaking up of the continents, the oceans moved closer to what is now North America, causing a dramatic increase in rain. 随着大陆的分离,海洋愈发靠近如今的北美洲,导致降水的急剧增加。 The herd is forced to the
The horn of the Pachyrhinosaurus could have been as long as a meter. 肿鼻角龙的角可能有一米长。 Many paleontologists think it was shaped like a rhinoceros horn, but much larger. 很多古生物学家们认为它的形状和犀牛角相仿,
A prehistoric watering hole. 一处史前水坑。 By using cutting edge technology, some of its fossilized secrets are scientifically decoded. 通过利用前沿科技,它的一些化石秘密如今已经被科学地揭开了。 Multiple species,
With a bite like that, Ceratosaurus could compensate for two glaring weaknesses. 有了如此恐怖的一咬,角鼻龙能够弥补两个明显弱点。 He wasn't especially fast and his claws weren't large or strong compared to other predators. 它并
This was the site of one of the most gruesome and barbaric acts ever recorded in the fossil record. 这个化石场记录着最可怕最野蛮的行为之一。 The bodies were piled on top of each other and the earth literally ran red with blood. 地面
A closer inspection of the Tenontosaurus revealed cuts and slashes in the bone, made by the teeth of Raptors. 仔细检查腱龙骨骼能发现迅猛龙造成的伤口和齿痕。 Proof that there were more than four Raptors in this pack. 这说明这群
Because Tenontosaurus has that long tail, it's a clear sign that it is designed to be more of a weapon. 腱龙长长的尾巴很明显是非同寻常的武器。 So it's got a great way to defend itself. 所以是保障自身安全的好办法。 Tha
Then, Ostrum's crew made another discovery - lying next to the Raptor was a second skeleton. 紧接着,奥斯特伦姆的团队有了另一个发现,在迅猛龙旁边还有第二具骸骨。 Two Raptors, side by side. 两头迅猛龙紧挨着。
There's a huge difference in the fact that the whales would have sonar and could use that to detect food. 鲸类能够用声纳来探测食物的事实带来了巨大区别。 Megalodon on the other hand doesn't have that advantage, 而巨齿鲨就没有
Well, the answer is amber - fossilized tree sap. 答案是琥珀,树液的化石。 We find all kinds of prehistoric insects, plants, and even small reptiles trapped within amber. 我们能发现琥珀里面裹着各种史前昆虫、植物甚至小型
They were the elite, the predators that ruled the earth. 它们是精英,是统治地球的掠食者。 They ranged from the giant T-Rex, who relied on size and long curved teeth, to the smaller Raptors, who used speed and cunning. 它们中有霸王
We can look at modern jaguar to see animals that sort of play the same role that Ceratosaurus does. 我们可以参考现代的美洲豹,来看一看差不多扮演着角鼻龙角色的动物。 Jaguars take on medium to smaller prey, but it's hesi
In 2007, paleontologists of Manchester University made a breakthrough discovery. 在2007年,曼彻斯特大学的古生物学家们取得了一项突破性的发现。 By studying the leg bones, musculature and mechanics behind them, they were able
Under the intense heat of the Jurassic sun, scientists believe an unseen force would begin to take its toll. 在侏罗纪烈日的曝晒之下,科学家们相信一种不可见的力量会发挥其威力。 The massive size of these Allosaurus make
Gastonia lowers his body to protect his underside. 加斯顿龙伏低身体保护身下。 His tail is heavily armored, but its powerful muscles are able to move it with surprising speed. 它的尾巴全副武装,但其有力的肌肉能带动尾巴以
You really want to detect a predator before it gets close enough for you to be able to see it and so they potentially used other senses like the sense of smell. 它们确实会想在掠食者靠近得能够看见之前就探测到它,所以它们潜在
Over the next 90 million years, a new era called the Cretaceous period dawned. 在接下来的九千万年里,开始了一个叫做白垩纪的新时期。 Broader-leaf plants that could tolerate seasonal weather changes covered the land. 能够忍受