热门推荐

安卓版 | iphone版

您的位置：首页 > 标签包含有标签发现的文章共有:187篇

[探索发现] 探索发现: 冰期绿洲 Ice Age Oasis(9)
The cold climate conifer forests of the north displaced broadleaved woodlands. Plants and animals were gradually pushed south to find a warmer climate.
2013-08-14 编辑：Andersen
[CCTV9] 我国发现H7N9人感染病例
我国发现H7N9人感染病例 CCTV-9 视频新闻我国发现 H7N9 人感染病例
2013-08-12 编辑：mike
[探索发现] 探索发现: 冰期绿洲 Ice Age Oasis(8)
But how did one man and a spear produce the huge force behind this blow? The answer lies with small bits of ivory like this. They were once part of an atlatl, or spear thrower.
2013-08-06 编辑：Andersen
[探索发现] 探索发现: 冰期绿洲 Ice Age Oasis(7)
But most significant of all, the jaguar has a tell-tale trademark. Instead of going for the neck or snout like most cats do, it kills with a crushing bite through the skull into the brain.
2013-07-31 编辑：Andersen
[探索发现] 探索发现: 冰期绿洲 Ice Age Oasis(6)
These holes are the unmistakable hallmark of a violent death. Their shape suggest they were made by the teeth of a big cat, but which one?
2013-07-29 编辑：Andersen
[探索发现] 探索发现: 冰期绿洲 Ice Age Oasis(5)
But the glyptodont wasn't a reptile. So what was it? There is a relative of the glyptodont that’s still alive today. 但是雕齿兽却并不是爬行动物。那它又属于什么动物呢？如今还存活着一种与雕齿兽存在“血缘关系”的动物。
2013-07-24 编辑：Andersen
[探索发现] 探索发现: 冰期绿洲 Ice Age Oasis(4)
At first sight, manatees might look like seals or dolphins. But in fact, some of their closest relatives live on land. These toenails are the giveaway, remarkably similar to those of elephants.
2013-07-23 编辑：Andersen
[探索发现] 探索发现: 冰期绿洲 Ice Age Oasis(3)
This creates steam in oasis and a profusion of life. Today, these warm springs are a refuge for one of Florida's most tropical inhabitants.
2013-07-19 编辑：Andersen
[探索发现] 探索发现: 冰期绿洲 Ice Age Oasis(2)
By piecing together the evidence these creatures left behind, we can build a picture of this sub-tropical corner of the continent as it was 13,000 years ago.
2013-07-17 编辑：Andersen