欧美人妖在线二区|青青在线视频人视频在线|色资源站欧美在线|精品久久久久久午夜福利

Hi. I’m running. I’m also telling some of my stem cells what to do right now. Well, I probably am, based on a new study with mice. We have what are called mesenchymal stem cells. This type of...

More than 60 mammal species—like the famous flying squirrel—have adapted the ability to sail from tree to tree. , yes. But what’s the evolutionary advantage? One theory suggests gliding save...

What does a bookworm have in common with a marmoset? They both like a little quiet. Or so say scientists in the Royal Society journal Biology Letters. As urban areas continue to expand, their ...

A jumping cockroach. A glowing mushroom. These are three of scientists’ picks for the Top Ten New Species described in 2010. The list is put together by the International Institute for Species ...

If you’ve ever had to pick up and carry a tired child through the mall, you know that walking sometimes the toddlers. Now scientists think they know why. The results appear in the Journal of Ex...

農(nóng)業(yè)部有一個大豆胚質(zhì)的收藏,是關(guān)于代代相傳的基因物質(zhì)的。 Tommy Cater Monsanto，DuPont，SyngentaThe Agriculture Department has a soybean germplasm collection, a collection of genetic material pass...

農(nóng)業(yè)部有一個大豆胚質(zhì)的收藏,是關(guān)于代代相傳的基因物質(zhì)的。 Tommy Cater Monsanto，DuPont，SyngentaThe Agriculture Department has a soybean germplasm collection, a collection of genetic material pa

科學(xué)家們正在利用生物技術(shù)以及傳統(tǒng)的育種方法，培育節(jié)水作物來養(yǎng)活不斷增長的世界人口。 Carolina，Thomas（"Tommy" )CarterScientists are working to develop crop plants that can reduce the amount of wat...

Mershin和他的同事都想弄明白一棵樹能夠產(chǎn)生可以被測量到的足夠電量的方法和原因。Mershin and his colleagues wanted to understand how a tree could generate enough power to be measured and why it would...

樹木會產(chǎn)生電流，你相信么？樹木產(chǎn)生的電量足夠給電池充上電以運(yùn)行一個網(wǎng)絡(luò)來追蹤偏遠(yuǎn)地區(qū)的森林火災(zāi)。 摘要：Andreas Mershin，MassachusettsYou might be surprised to learn that trees generate small amou...