Editing 1211: Birds and Dinosaurs
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{{w|Bird}}s are commonly considered to be a separate {{w|class (biology)|class}} of {{w|tetrapods}}. However, this classification is false according to {{w|phylogenetic taxonomy}}. Taking into account that birds developed around {{w|Late Jurassic|150 million years ago}} out of small {{w|theropod}} dinosaurs, birds along with crocodiles are indeed the remaining representatives of the {{w|Archosaur|archosaur clade}}. This premise appeared also in comic [[867: Herpetology]]. | {{w|Bird}}s are commonly considered to be a separate {{w|class (biology)|class}} of {{w|tetrapods}}. However, this classification is false according to {{w|phylogenetic taxonomy}}. Taking into account that birds developed around {{w|Late Jurassic|150 million years ago}} out of small {{w|theropod}} dinosaurs, birds along with crocodiles are indeed the remaining representatives of the {{w|Archosaur|archosaur clade}}. This premise appeared also in comic [[867: Herpetology]]. | ||
β | This relation between birds and dinosaurs is depicted in the comic in a {{w|cladogram}} which shows that ''{{w|Tyrannosaurus rex}}'' is more closely related to the common {{w|sparrow}} than to ''{{w|Stegosaurus}}''. Not only do the former share a phylogenetic branch, but ''T. rex'' also lived around 80 million years ''after'' ''Stegosaurus''. The concurrence of both species in popular culture is a widespread error. ''T. rex'' is also much more alike to modern birds than to other dinosaurs in terms of | + | This relation between birds and dinosaurs is depicted in the comic in a {{w|cladogram}} which shows that ''{{w|Tyrannosaurus rex}}'' is more closely related to the common {{w|sparrow}} than to ''{{w|Stegosaurus}}''. Not only do the former share a phylogenetic branch, but ''T. rex'' also lived around 80 million years ''after'' ''Stegosaurus''. The concurrence of both species in popular culture is a widespread error. ''T. rex'' is also much more alike to modern birds than to other dinosaurs in terms of physiognomy. This relationship was pointed out on the [http://www.sciencemag.org/content/340/6133/690 Science] journal the week of the comic. |
The comic draws the conclusion that if birds must in fact be considered modern dinosaurs, the hunting practice of birds of prey (specifically, the {{w|peregrine falcon}}) is consequently a dinosaur fight. For an inveterate dinosaur aficionado like [[Randall]], this fact must make the modern world much more attractive. | The comic draws the conclusion that if birds must in fact be considered modern dinosaurs, the hunting practice of birds of prey (specifically, the {{w|peregrine falcon}}) is consequently a dinosaur fight. For an inveterate dinosaur aficionado like [[Randall]], this fact must make the modern world much more attractive. | ||
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The line "This is a good world." could also possibly refer to a [http://www.youtube.com/watch?v=znxFrgql5dc famous scene] from the {{w|Serenity (Firefly episode)|pilot episode}} of the television series ''{{w|Firefly (TV series)|Firefly}}'' featuring two plastic dinosaurs in a somewhat philosophic dialogue. Randall is known to be a {{w|Browncoat|fan of the series}}. | The line "This is a good world." could also possibly refer to a [http://www.youtube.com/watch?v=znxFrgql5dc famous scene] from the {{w|Serenity (Firefly episode)|pilot episode}} of the television series ''{{w|Firefly (TV series)|Firefly}}'' featuring two plastic dinosaurs in a somewhat philosophic dialogue. Randall is known to be a {{w|Browncoat|fan of the series}}. | ||
β | The title text is a sidesweep to the webcomic ''[http://www.qwantz.com Dinosaur Comics]'' drawn by | + | The title text is a sidesweep to the webcomic ''[http://www.qwantz.com Dinosaur Comics]'' drawn by Ryan North, who stands 6'6" (198 cm) tall. At that page the title text of the comic [http://www.qwantz.com/index.php?comic=2420 strip] from the same day refers to Randall and ''[[xkcd]]''. |
The conclusion of this comic is referenced in the title text of the last image in the [http://what-if.xkcd.com/101/ Plastic Dinosaurs] What if? | The conclusion of this comic is referenced in the title text of the last image in the [http://what-if.xkcd.com/101/ Plastic Dinosaurs] What if? |