| 查看: 1045 | 回复: 17 | |||
[交流]
Everyday News-CO2 Makes Fish Dumb
|
To survive the complex, often-dangerous environment of a coral reef, the colorful reef fish Neopomacentrus azysron has to be a clever fish. Like many intelligent animals, it uses the right and left hemispheres of its brain for different purposes, which allows for quick problem-solving. But this reef fish could be in danger of losing its smarts as levels of CO2 in the ocean continue to rise due to human activity, according to a new study. Researchers raised one set of reef fish larvae in normal seawater and one set in water containing twice as much CO2—the level that the Pacific Ocean is expected to reach by 2100. When the fish grew up, the team put them in a maze. Each fish that had been spawned in the normal water consistently preferred to turn either right or left every time it reached the barrier, a sign of "handedness." But fish that had been spawned in high CO2 didn't have a favorite hand: they turned right or left at random each time they hit the barrier. This loss of handedness, the researchers report today in Biology Letters, may be a sign of other, more subtle developmental brain dysfunctions that might hurt the ability of this fish, and other marine species that could be similarly affected by CO2, to survive in a high-carbon future. |
回复此楼» 猜你喜欢
重要消息，中午系统在维护
已经有5人回复
-
欢迎发来filecode的Mz6后的代码验证其规律
已经有101人回复
-
时间戳又变了8-15
已经有26人回复
-
售SCI-T0P文章，我:8O.5.5.1.O.54,科目齐全,可+急
已经有4人回复
-
今天维护系统维护 祝所有人 高中
已经有9人回复
-
哪位老哥知道今年的国自然具体哪一天放榜？
已经有16人回复
-
2027广东省杰青
已经有8人回复
-
快农历七夕节了，轻松一下，男人悄悄话，女施主请不要进来。
已经有5人回复
-
投稿咨询
已经有5人回复
-
时间戳变了，能看出什么问题？
已经有6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2011-09-10 17:01:00
★
小木虫(金币+0.2):抢了个小板凳，给个红包
小木虫(金币+0.2):抢了个小板凳，给个红包
|
|
3楼2011-09-10 17:04:06
yinjuanchen
铁杆木虫 (著名写手)
- 应助: 1 (幼儿园)
- 金币: 5909.8
- 散金: 397
- 红花: 23
- 帖子: 2881
- 在线: 434.7小时
- 虫号: 961438
- 注册: 2010-03-04
- 性别: MM
- 专业: 无机材料化学
4楼2011-09-10 17:11:40
witch_girl
金虫 (文坛精英)
- ESEPI: 53
- 应助: 0 (幼儿园)
- 贵宾: 0.903
- 金币: 1333.9
- 散金: 15217
- 红花: 105
- 沙发: 52
- 帖子: 14445
- 在线: 1679.7小时
- 虫号: 857925
- 注册: 2009-09-27
- 专业: 信息处理方法与技术
- 管辖: English Cafe
5楼2011-09-10 18:25:24
asymmetry
荣誉版主 (知名作家)
皇家神龍教-asymmetry
-
专家经验: +6 - 应助: 163 (高中生)
- 贵宾: 6.675
- 金币: 8625.6
- 散金: 5168
- 红花: 134
- 沙发: 326
- 帖子: 9016
- 在线: 543.3小时
- 虫号: 282742
- 注册: 2006-09-24
- 性别: GG
- 专业: 有机合成
- 管辖: 文献求助
6楼2011-09-10 20:43:00
witch_girl
金虫 (文坛精英)
- ESEPI: 53
- 应助: 0 (幼儿园)
- 贵宾: 0.903
- 金币: 1333.9
- 散金: 15217
- 红花: 105
- 沙发: 52
- 帖子: 14445
- 在线: 1679.7小时
- 虫号: 857925
- 注册: 2009-09-27
- 专业: 信息处理方法与技术
- 管辖: English Cafe
7楼2011-09-10 21:27:36
8楼2011-09-10 21:30:06
witch_girl
金虫 (文坛精英)
- ESEPI: 53
- 应助: 0 (幼儿园)
- 贵宾: 0.903
- 金币: 1333.9
- 散金: 15217
- 红花: 105
- 沙发: 52
- 帖子: 14445
- 在线: 1679.7小时
- 虫号: 857925
- 注册: 2009-09-27
- 专业: 信息处理方法与技术
- 管辖: English Cafe
9楼2011-09-10 22:11:45
  |
10楼2011-09-10 22:13:17
