| 查看: 1036 | 回复: 35 | |||
[交流]
Everyday News-Coloring in Prehistoric Bugs
|
Fans of prehistoric sketches can now color in their favorite ancient bugs with less guesswork. Modern insects from beetles to butterflies are famous for their metallic hues. These intricate and often iridescent color patterns stem from tiny structural tweaks along the critter's outer exoskeletons, such as alternating layers of ultra-thin tissue that bounce light in different directions. Many fossil beetles are similarly colorful, but scientists weren't sure how the fossilization process may have changed their tints. To get at this color conundrum, researchers examined the nanostructures of old bugs, dating from about 15 million to 50 million years ago, under the microscope. Sure enough, many of the beetles had different colors than their exoskeleton structure seemed to indicate, the group reports online this week in the Proceedings of the Royal Society B. They conclude that molecular changes during fossilization likely pushed the beetles' coloring toward the red end of the color spectrum, turning a normally yellow beetle more orange, for example. |
回复此楼» 猜你喜欢
河北省自然科学基金
已经有8人回复
-
西安交大新媒学院副院长用撤稿论文结题
已经有5人回复
-
论文撤稿了
已经有5人回复
-
某211大学教师把个人教师官方主页改成:我跑了我跑了我跑了!官宣跑路！
已经有5人回复
-
26/27申博自荐
已经有9人回复
-
售SCI一区T0P文章，我:8.O.5.5.1.O.5.4,科目齐全,可+急
已经有3人回复
-
售SCI一区T0P文章，我:8.O.5.5.1.O.5.4,科目齐全,可+急
已经有7人回复
-
揭秘青基评审内幕：几个A才能顺利中标
已经有4人回复
-
青B发送上会通知了吗
已经有7人回复
-
博士申请
已经有3人回复
★
小木虫(沙发+1，金币+0.5):恭喜抢个沙发，再给个红包
小木虫(沙发+1，金币+0.5):恭喜抢个沙发，再给个红包
 |
2楼2011-09-28 21:36:59
3楼2011-09-28 21:37:21
 |
4楼2011-09-28 21:45:25
5楼2011-09-28 21:51:30
 |
6楼2011-09-30 14:23:46
7楼2011-09-30 14:59:10
 |
8楼2011-09-30 15:54:23
9楼2011-09-30 16:07:27
lppv
荣誉版主 (文坛精英)
无与伦比俱乐部部长
- ESEPI: 42
- 应助: 5 (幼儿园)
- 贵宾: 2.158
- 金币: 9455.2
- 散金: 21883
- 红花: 262
- 沙发: 257
- 帖子: 29946
- 在线: 3646.7小时
- 虫号: 937152
- 注册: 2010-01-05
- 性别: MM
- 专业: 无机合成和制备化学
- 管辖: English Cafe
you are cheated. it is me
10楼2011-09-30 16:10:36
10