家长易论坛

 找回密码
 立即注册

QQ登录

只需一步,快速开始

查看: 1556|回复: 4
打印 上一主题 下一主题

[高二] 全球变暖可能会使人类变矮

[复制链接]
跳转到指定楼层
楼主
发表于 2012-3-31 16:31:11 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式

马上注册,结交更多家长,享用更多功能,让你轻松玩转家长易社区。

您需要 登录 才可以下载或查看,没有帐号?立即注册

x
Global warming could make humans shorter, warn scientists who claim to have found evidence that it caused the world`s first horses to shrunk nearly 50 million years ago.
科学家警告说,全球变暖可能会使人类变矮。科学家宣称已经找到证据:近5000万年前全球变暖就曾让世界上最早的马个头变小。
In fact, a team from the universities of Florida and Nebraska says it has found a link between the Earth heating up and the size of mammals -- horses, in this case, the last time the world heated up.
事实上,来自佛罗里达州和内布拉斯加州的大学的一支研究团队称,他们已经找到地球变暖和哺乳动物个头之间的联系。这一案例中马变矮的现象是上一次全球变暖时发生的。
The scientists used fossils to follow the evolution of horses from their earliest appearance 56 million years ago.
科学家用化石来追溯马从5600万年前诞生至今的进化历程。
As temperatures went up their size went down, and vice versa; at one point they were as small as a house cat, said Dr Jonathan Bloch, curator of the Florida Museum of Natural History, was quoted by the Daily Mail as saying.
随着气温的上升,马的个头变小,反之马的个头就变大。《每日邮报》援引佛罗里达自然历史博物馆馆长乔纳森•布洛赫博士的话说,它们曾一度像家猫那么小。
The scientists say that the current warming could have the same effect on mammals -- and could even make humans smaller.
科学家称,当前的全球变暖可能也会对哺乳动物产生同样的影响,甚至可能会让人类的个子也变小。
Horses started out small, about the size of a small dog like a miniature schnauzer. What’s surprising is that after they first appeared, they then became even smaller and then dramatically increased in size, and that exactly corresponds to the global warming event, followed by cooling.
马最初的个头很小,和一只小狗的个头差不多,大约也就像一只迷你型雪纳瑞犬那么大。令人惊讶的是,在马诞生后过了一段时间,它们的个子变得更小,之后个头又显著变大,而这些变化与全球变暖和变冷正好是相对应的。
It had been known that mammals were small during that time and that it was warm, but we hadn’t understood that temperature specifically was driving the evolution of body size.
我们已经知道哺乳动物在那个时期个头较小,而那个时期气候也较暖,但我们还未意识到正是温度驱动着身体大小的进化。
分享到:  QQ空间QQ空间 腾讯微博腾讯微博 腾讯朋友腾讯朋友
收藏收藏 分享分享 分享淘帖
沙发
发表于 2012-3-31 16:34:00 | 只看该作者
:)  学习了!
板凳
发表于 2012-4-1 10:13:57 | 只看该作者
有点趣味性
地板
发表于 2012-4-11 11:04:41 | 只看该作者
晕死也不多加点分,哈哈  
5
发表于 2012-4-11 11:04:41 | 只看该作者
自己知道了  
您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

小黑屋|手机版|Archiver|网站地图|家长易论坛 ( 鄂ICP备16011226号-1  点我聊天

GMT+8, 2024-4-29 11:21

Powered by 家长易

快速回复 返回顶部 返回列表