【Phat Yeti出品】60-SECOND SCIENCE 官方听力文稿 + 讨论帖 （更新至：2008.03.07）

豆豆～UID: 2378384

Plants Don't Like Greenhouse Effect

Seems like every other week brings news that global warming is going to be bad for some poor animal or other. But plants? Well, I guess I was thinking that plants would welcome the heat. I mean, global warming is caused by greenhouse gases. And plants live in greenhouses. So everyone’s happy. Well, according to a new study, published in the February 12 issue of the Proceedings of the National Academy of Sciences, I was wrong. Or at least not quite right. Because plants, too, are likely to face problems as the earth heats up. And their biggest problem is likely to be: insects.

Scientists were looking at the fossilized remains of leaves that fell off trees about 55 million years ago. At that time, the planet was undergoing a period of warming. The scientists found that as the temperatures rose, the leaves looked more…nibbled. Seems that with more CO2 in the atmosphere, plants take up more carbon. That actually makes their leaves less nutritious for plant-munching bugs—so the insects just eat more. So, a warmer planet will be home to some hungry bugs. Which I dare say will not please the trees. Or anyone else who relies on plants for food—which includes, ultimately, all of us.

[ 本帖最后由 豆豆～ 于 2008-2-14 09:38 编辑 ]

leo_anUID: 2300783

有一个minor mistake,呵呵。seems like every other week

原帖由 豆豆～ 于 2008-2-14 08:36 发表
Plants Don't Like Greenhouse Effect

Seems like every week brings news that global warming is going to be bad for some poor animal or other. But plants? Well, I guess I was thinking that plants ...

豆豆～UID: 2378384

已修正，谢谢！;d:

PamosUID: 2184645

ding

深海~UID: 2443961

给你抢去啦...恩好,换来换去很麻烦,下午再用主ID给你加.;d:

阿HUID: 2393714

情人节快乐啊;d:

茶盖UID: 2186535

好帖子，顶起来

kiki1988UID: 2329056

姐姐……为什么我下载不了？？？

豆豆～UID: 2378384

Barnacles Reach Out To Valentines

It’s Valentine’s Day.  Even for barnacles.  Which are stuck to rocks.  But evolution has endowed these stationary creatures with some curious abilities, according to research was published on-line in the Proceedings of the Royal Society. Male barnacles have members that can stretch to eight times their body length to reach a similarly stuck female. They have other problems, though—strong waves and tides.

Scientists at Canada’s University of Alberta discovered that barnacles cope with this challenge by developing differently shaped genitalia. Barnacles that cling to rocks on wave-exposed shores have shorter, wider organs, so they can maintain control in violent waters. Those that live in coves protected from crashing waves have longer, slimmer ones. Researchers transplanted young barnacles living in protected coves to unprotected ones, and vice versa. And the animals developed accordingly. For example, barnacles from calm areas that were moved to turbulent seas grew short, wide members. This experiment shows that barnacles can develop their digit to suit local conditions, and reach through churching waters to connect with someone special.

[ 本帖最后由 豆豆～ 于 2008-2-14 17:47 编辑 ]

wangzanUID: 2130943

thanks for sharing~!

深海~lavenderUID: 2458395

姐姐?在喊谁?.......LZ不是姐姐.哈哈.

豆豆～UID: 2378384

在喊你:o

阿HUID: 2393714

她是SG

阿HUID: 2393714

原帖由 kiki1988 于 2008-2-14 17:12 发表
姐姐……为什么我下载不了？？？

:loveliness: 这个是杀版的猴子

深海lavenderUID: 2350207

他99%比我大吧...