Timeline for Has a new functional structure ever been observed arising spontaneously?
Current License: CC BY-SA 3.0
28 events
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| Mar 21, 2018 at 19:04 | vote | accept | r2d2 | ||
| Mar 21, 2018 at 19:04 | |||||
| Mar 18, 2018 at 17:15 | review | Close votes | |||
| Mar 27, 2018 at 3:01 | |||||
| Mar 18, 2018 at 16:57 | answer | added | Remi.b | timeline score: -1 | |
| Mar 18, 2018 at 16:49 | comment | added | Remi.b | It is hard to know what examples would be satisfying to you. How about the classical case of human lactose digestion (see this answer)? | |
| Mar 18, 2018 at 3:39 | answer | added | Jon Perry | timeline score: 0 | |
| Jun 29, 2015 at 18:41 | comment | added | r2d2 | no. but at least those that lead to a new limb,etc in an insect, are usually not trivial. have to set some kind of bar. otherwise, will get some trivial organelles or enzyme molecule and the question is wasted | |
| Jun 29, 2015 at 17:43 | comment | added | WYSIWYG | @r2d2 and you think changes that do not lead to a new limb formation are trivial? Please get the concepts right. | |
| Jun 29, 2015 at 16:34 | comment | added | r2d2 | @WYSIWYG exactly what it says. not some trivial change or strucutre. this is why i asked for new limb or organ, etc. in size of insect or bigger. or even a duplicated antena, etc.if you dont have. thnx | |
| Jun 29, 2015 at 11:19 | comment | added | WYSIWYG | @r2d2 And what do you exactly mean by "trivial complexity arguments"? | |
| Jun 29, 2015 at 11:05 | comment | added | r2d2 | could even be a duplicated eye or antenna and this was advantageous and spread into the population. i.e. some species which had 2 eyes and now has 3 | |
| Jun 29, 2015 at 10:56 | comment | added | r2d2 | @WYSIWYG need a limb or organ in something the size of an insect or bigger. dont want to waste this question on trivial complexity arguments. could be a new functional limb or antenna or eye. something non trivial complexity. thnx | |
| Jun 29, 2015 at 6:57 | comment | added | WYSIWYG | Would an organelle do? | |
| Jun 28, 2015 at 23:37 | answer | added | Darwin | timeline score: 3 | |
| May 29, 2015 at 12:47 | comment | added | r2d2 | correct. spontaneously means without human influence. time means since human recorded history. | |
| May 29, 2015 at 12:39 | comment | added | fileunderwater | What do you mean with "spontaneously" (without human influence? in a short period of time/instantaneously?)? The reason why I'm asking is that creationists often formulate questions in a similar way, from the perspective of doubting evolution as a whole (we haven't "seen" this/that happen), misunderstanding the evolutionary process (e.g. mutation -> new function) and their artifical boundary between macro and microevolution. I'm not saying that you believe in this, and I'm just asking for clarifications, since the current framing of your question might lead to misunderstandings. | |
| May 29, 2015 at 9:03 | answer | added | Gaurav | timeline score: 0 | |
| Apr 26, 2015 at 15:32 | comment | added | user813801 | @aandreev new memory is not a new organ. memory infrastructure is already there. that's obviously not the question here. interesting article on epigenetics though. it seems that our understanding of DNA could change dramatically | |
| Apr 26, 2015 at 11:47 | comment | added | aaaaa says reinstate Monica | organ in form of memory about never-encountered before adorant. | |
| Apr 26, 2015 at 11:15 | history | edited | r2d2 | CC BY-SA 3.0 |
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| Apr 26, 2015 at 11:13 | comment | added | r2d2 | @aandreev what new organ arose there? thnx | |
| Apr 26, 2015 at 10:59 | comment | added | aaaaa says reinstate Monica | how about story of epigenetic inheritance of fear? nature.com/news/… Although it wasn't spontaneous | |
| Apr 26, 2015 at 10:35 | comment | added | r2d2 | @MarchHo new enzyme is not a sensor or organ. looking for a new functional system like a new organ or a new sense. I updated the question to reflect your point. thanks | |
| Apr 26, 2015 at 10:34 | history | edited | r2d2 | CC BY-SA 3.0 |
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| Apr 26, 2015 at 6:03 | comment | added | r2d2 | @MarchHo looking for a new organ, such as an electroreception probe or a poison gland with delivery system. i.e. a new working functional system of non trivial complexity | |
| Apr 26, 2015 at 5:57 | comment | added | March Ho | Can you define "functional biological structure"? As it is now, this is a good question which is not very clearly defined. For example, would a single new enzyme count as a "new function"? | |
| Apr 26, 2015 at 5:51 | history | edited | March Ho | CC BY-SA 3.0 |
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| Apr 26, 2015 at 5:25 | history | edited | r2d2 | CC BY-SA 3.0 |
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| Apr 26, 2015 at 5:16 | history | asked | r2d2 | CC BY-SA 3.0 |