Comments on: Shake Your Jurassic Tail Feather http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/ Mon, 04 Feb 2013 17:13:44 +0000 hourly 1 http://wordpress.org/?v=3.4.2 By: Mauro http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8531 Mauro Tue, 04 Oct 2011 17:36:20 +0000 http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8531 I think it is safe to say that feathers were shaped by sexual seleccion, each generation of females choosing mates with longer and better formed feathers. Males had to display a ritual in which they jumped while waving the "wings" up and down to impress the females. The higher jumpers were selected and that's how they started to become more and more lighter and feathery. This is my main thing. But that hypothesis depends on when the microraptors come into the picture, since they represent a different branch of flight OR the origin of flight itself. They seem to be tree climbers and their feathers and bodies suggest pre-flight jumping from tree to tree. Does anyone know if the microraptor is found before archaeopteryx or after, or are they contemporary species? I need to know this... I can't find the exact thing... I think it is safe to say that feathers were shaped by sexual seleccion, each generation of females choosing mates with longer and better formed feathers. Males had to display a ritual in which they jumped while waving the “wings” up and down to impress the females. The higher jumpers were selected and that’s how they started to become more and more lighter and feathery. This is my main thing. But that hypothesis depends on when the microraptors come into the picture, since they represent a different branch of flight OR the origin of flight itself. They seem to be tree climbers and their feathers and bodies suggest pre-flight jumping from tree to tree. Does anyone know if the microraptor is found before archaeopteryx or after, or are they contemporary species? I need to know this… I can’t find the exact thing…

]]> By: Jurassic Dad | The Loom | Discover Magazine http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8530 Jurassic Dad | The Loom | Discover Magazine Thu, 18 Dec 2008 19:21:05 +0000 http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8530 [...] discovered in the process, such as flightless dinosaurs that probably used feathers to show off to the opposite sex. Feathered dinosaurs also laid eggs in nests and incubated them much as birds do today. And today [...] [...] discovered in the process, such as flightless dinosaurs that probably used feathers to show off to the opposite sex. Feathered dinosaurs also laid eggs in nests and incubated them much as birds do today. And today [...]

]]> By: Kilian Hekhuis http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8529 Kilian Hekhuis Thu, 30 Oct 2008 10:10:19 +0000 http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8529 Creationists engage their brain in ways that you and I cannot comprehend. They must be wired all backwards... Creationists engage their brain in ways that you and I cannot comprehend. They must be wired all backwards…

]]> By: rob http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8528 rob Fri, 24 Oct 2008 23:25:03 +0000 http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8528 sbgaetal The photo you referenced was a completely different fossil, _Eoconfuciusornis_. Perhaps you should engage your brain before you post. sbgaetal

The photo you referenced was a completely different fossil, _Eoconfuciusornis_. Perhaps you should engage your brain before you post.

]]> By: Adam http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8527 Adam Fri, 24 Oct 2008 22:13:06 +0000 http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8527 sbgaetal How was an old reference relevant to a new find??? Quit the posturing - it's embarassing! Let real paleontologists and paleoartists do their jobs! sbgaetal

How was an old reference relevant to a new find???

Quit the posturing – it’s embarassing! Let real paleontologists and paleoartists do their jobs!

]]> By: sbgaetal http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8526 sbgaetal Fri, 24 Oct 2008 14:21:09 +0000 http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8526 Do you think it is possible that the artist who created the picture being blasted all over the known world was a wack job? Have you seen the original fossil find? http://news.nationalgeographic.com/news/bigphotos/95096577.html How does one go from that to what you see all over? Blue tuft and ribbon appendage display "feathers" that have nothing to do with flight. Get real folks. Here is a more level headed, referenced approach to the topic: http://www.trueorigin.org/birdevo.asp#6 Warning: Engage your brains first before you read. Do you think it is possible that the artist who created the picture being blasted all over the known world was a wack job? Have you seen the original fossil find?

http://news.nationalgeographic.com/news/bigphotos/95096577.html

How does one go from that to what you see all over? Blue tuft and ribbon appendage display “feathers” that have nothing to do with flight.

Get real folks. Here is a more level headed, referenced approach to the topic:

http://www.trueorigin.org/birdevo.asp#6

Warning: Engage your brains first before you read.

]]> By: Greg http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8525 Greg Thu, 23 Oct 2008 20:17:13 +0000 http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8525 Do you think it would be possible for sexual selection to drive the development of feathers, but then adaptive advantages (like insulation) to take over? Are there any known instances of sexual selection and natural selection feeding off of each other? I'm thinking cuttlefish in my head, but even in that case, it's more likely that their camouflage abilities started with natural, rather than sexual, selection. Do you think it would be possible for sexual selection to drive the development of feathers, but then adaptive advantages (like insulation) to take over? Are there any known instances of sexual selection and natural selection feeding off of each other? I’m thinking cuttlefish in my head, but even in that case, it’s more likely that their camouflage abilities started with natural, rather than sexual, selection.

]]> By: Stenfugle » Ny dinosaur med mærkværdige halefjer http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8524 Stenfugle » Ny dinosaur med mærkværdige halefjer Thu, 23 Oct 2008 14:22:25 +0000 http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8524 [...] har Darren Naish, Carl Zimmer og Live Science også kommenteret på det nye [...] [...] har Darren Naish, Carl Zimmer og Live Science også kommenteret på det nye [...]

]]> By: If You Want to Shake Your Jurassic Tail-Feather One More Time… | The Loom | Discover Magazine http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8523 If You Want to Shake Your Jurassic Tail-Feather One More Time… | The Loom | Discover Magazine Thu, 23 Oct 2008 13:19:53 +0000 http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8523 [...] Blogs / The Loom « Shake Your Jurassic Tail Feather [...] [...] Blogs / The Loom « Shake Your Jurassic Tail Feather [...]

]]> By: 2008-10-23 - Epidexipteryx hui: le piume per “esibizionismo” e non per volare (2) « PaleonewsITA http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8522 2008-10-23 - Epidexipteryx hui: le piume per “esibizionismo” e non per volare (2) « PaleonewsITA Thu, 23 Oct 2008 09:17:25 +0000 http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-8522 [...] Shake Your Jurassic Tail Feather Discover Magazine - 14 ore fa In recent years, dinosaurs have gotten awfully cute. They’re no longer Victorian lumps of saggy muscle. A lot of them are not even frightening. … [...] [...] Shake Your Jurassic Tail Feather Discover Magazine - 14 ore fa In recent years, dinosaurs have gotten awfully cute. They’re no longer Victorian lumps of saggy muscle. A lot of them are not even frightening. … [...]

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