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All animals need sleep...or do they? Every mammal needs it, as well as birds and reptiles, such as snakes. Amphibians, like frogs, do not sleep. But what about insect "sleep" behavior for years. Scientists first thought insects did not need sleep. According to them, the insect brain wasn't complex enought to need it . Scientists said that some kinds of brain activity, like dreaming, were sleep behaviors. Insects do not dream, so scientists said that they did not sleep. They believed that insects "rested"instead.
However, new studies have shown that some insects may actually sleep. There are four types of behavior during sleep. First, sleeping people or animals don't move much. Also, they have a position for sleeping; for example, they lie down. Additionally, they don't wake up easily when hearing noises or seeing light. Lastly, they are able to come out of sleep quickly. Scientists have now seen similar behaviors in fruit flies. For example, fruit flies become still every night for about seven hours. They sit lower and droop their antennae. They do not respond to quiet noises. However, they start to move around when louder noises are made. Scientists now feel that some insects may have their own unique kind of sleep.

2006-01-07 10:46:00 · 4 個解答 · 發問者 ruchun 1 in 社會與文化 語言

4 個解答

所有動物都須要睡眠嗎?是的,所有的哺乳類鳥類及爬蟲體如蛇都須要睡眠.但是兩棲類像青蛙類就不須要睡眠.那麼昆蟲多年的"睡眠"狀態又如何解釋?科學家本以為昆蟲不須要睡眠,據他們的解釋,昆蟲的大腦還沒有複雜到須要睡眠.科學家的解釋是:有些大腦的活動,比如做夢,是一種睡眠狀態.昆蟲不做夢所以它們不是睡覺.他們相信昆蟲是在"休息".然而,新的研究報告指出有些昆蟲可能真的在睡覺.睡覺時有四種不同狀態,第一種是人或動物在睡覺時不太會亂動.而且都有其睡覺的姿勢,例如,他們會躺下.另外,他們不會因聽到噪音或看到光線而容易醒來.最後,他們能很快的醒來.科學家現在看到果蠅也有類似的行為.譬如, 果蠅每天晚上有幾乎七個小時是屬於靜止狀態,它們會坐低並垂下觸鬚.它們對輕微聲音沒有反應.但是有很大聲音時它們會開始亂動,科學家現在覺得有些昆蟲可能有它們特殊的睡眠方式.

2006-01-08 08:53:30 · answer #1 · answered by undercvr 7 · 0 0

如如;

別上「北北」的當,他在每一句原文後面,用紅色的中文,讓人覺得他是一句、一句自己翻的,其實全部是翻譯機出來的。

「北北」在不到15分鐘裡,已經在知識家裡用翻譯機翻譯了8篇以上的文章了。他的研究生五級的身分就是這樣混到的。

2006-01-07 11:42:36 · answer #2 · answered by 菜英文 7 · 0 0

All animals need sleep...or do they? 全部動物需要睡還是他們嗎?  Every mammal needs it, as well as birds and reptiles, such as snakes. 每種哺乳動物需要它,和鳥和爬蟲,例如蛇。  Amphibians, like frogs, do not sleep. 兩棲動物,比如蛙, 不要睡。  But what about insect "sleep" behavior for years. 但是昆蟲怎么樣" 睡"  多年的行為。  Scientists first thought insects did not need sleep. 科學家首先認為昆蟲不需要睡。  According to them, the insect brain wasn't complex enough to need it.根據他們,昆蟲大腦沒有複雜得足以需要它。  Scientists said that some kinds of brain activity, like dreaming, were sleep behaviors. 科學家說某些大腦活動,象做夢一樣,是睡眠行為。  Insects do not dream, so scientists said that they did not sleep. 昆蟲不做夢,因此科學家說他們沒睡。  They believed that insects "rested” instead. 他們相信那昆蟲" restedinstead。  However, new studies have shown that some insects may actually sleep. 不過,新研究已經顯示一些昆蟲實際上可能睡。  There are four types of behavior during sleep.在睡眠期間有4 類行為。  First, sleeping people or animals don't move much. 首先,睡人們或者動物不移動得很多。  Also, they have a position for sleeping; for example, they lie down. 此外,他們有睡的一個位置; 例如,他們躺下。  Additionally, they don't wake up easily when hearing noises or seeing light. 另外,當聽到噪音或者看見光時,他們不容易醒來。  Lastly, they are able to come out of sleep quickly. 最後,他們能迅速是睡眠的結果。  Scientists have now seen similar behaviors in fruit flies. 科學家現下已經在果蠅裡看見相似的行為了。  For example, fruit flies become still every night for about seven hours. 例如,果蠅適合大約7 個小時變得安靜每天晚上。  They sit lower and droop their antennae. 他們坐得更低並且使下垂他們的antennae。  They do not respond to quiet noises. 他們不對安靜的噪音作出回應。  However, they start to move around when louder noises are made. 不過,當更吵人的噪音被製造時,他們開始四周轉轉。  Scientists now feel that some insects may have their own unique kind of sleep. 科學家現下感到一些昆蟲可能有他們自己的獨特的種睡眠。

2006-01-07 11:05:47 · answer #3 · answered by ? 7 · 0 0

全部動物需要睡,還是他們? 每種哺乳動物需要它,和鳥和爬蟲,例如蛇。 兩棲動物,喜歡蛙, 不要睡。 但是多年昆蟲"睡"行為怎麼樣。 科學家首先認為昆蟲不需要睡。 根據他們,昆蟲大腦不是需要它的複雜的enought。 科學家說某些大腦活動,像做夢一樣,是睡眠行為。 昆蟲不做夢,因此科學家說他們沒睡。 他們相信昆蟲改為"休息"。 不過,新研究已經顯示一些昆蟲實際上可能睡。 在睡眠期間有4 類行為。 首先,睡人們或者動物不移動得很多。 此外,他們有睡的一個位置; 例如,他們躺下。 另外,當聽到噪音或者看見光時,他們不容易醒來。 最後,他們能迅速是睡眠的結果。 科學家現下已經在果蠅裡看見相似的行為了。 例如,果蠅適合大約7個小時變得安靜每天晚上。 他們坐得更低並且使下垂他們的antennae。 他們不對安靜的噪音作出回應。 不過,當更吵人的噪音被製造時,他們開始四周轉轉。 科學家現下感到一些昆蟲可能有他們自己的獨特的種睡眠。

>> 這是在哪看到的..有點怪..
大致上是這樣吧..呵..參考看看囉QQ"..

2006-01-07 10:54:18 · answer #4 · answered by ? 1 · 0 0

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