mightymim Posted April 10, 2008 Share Posted April 10, 2008 i was reading some news this morning and i came across this shit is kinda weird Quote Link to comment Share on other sites More sharing options...
TheShaneCo. Posted April 10, 2008 Share Posted April 10, 2008 Fuck i wish they didnt have the internet in indiana/illinois. Quote Link to comment Share on other sites More sharing options...
skirmfirm Posted April 10, 2008 Share Posted April 10, 2008 you came across a red cross in a box, fuck Quote Link to comment Share on other sites More sharing options...
Fist 666 Posted April 10, 2008 Share Posted April 10, 2008 i hate having to spread props around before i can negaprop again. Quote Link to comment Share on other sites More sharing options...
Seffiks Posted April 10, 2008 Share Posted April 10, 2008 Snake legs that walk no moreQ: Do snakes have legs? I heard on the Discovery Channel that they have little bitty legs, like nubs. Is this true? (Rachel, Kankakee, Illinois) A slender blindsnake (Typhlops biminiensis), a burrowing species, is limbless. Are all snakes? S. Blair Hedges, Pennsylvania State Univ., used with permission A: Primitive snakes — such as, pythons and boa constrictors — do have nub-like legs beneath their skins and tiny, half-inch claws that protrude out above the nubs but nestle close to their bellies near the anus. Actually, even the nubs are not legs but rather a remnant of upper-leg (thigh or femur) bones. The males still use the spurs — but only during courtship and fighting — not to walk. No other snakes have legs. The story of snake begins long ago (about 115 million years) in the early Cretaceous Period when dinosaurs were flourishing and flowering plants were developing. For a long time, we've known that snakes evolved from lizards but how they evolved is still unknown. A long-standing dispute whether snakes evolved from marine or land lizards smolders on. Blair Hedges and Nicolas Vidal of Penn State University believe they settled the issue from DNA testing of almost every known family of snakes and lizards. "Our results show clearly that snakes are not closely related to monitor lizards like the giant Komodo Dragon, which are the closest living relatives of the mosasaurs — the only known marine lizard living at the time that snakes evolved," Vidal says. © Martin J. Cohn, University of Florida used with permission Remnant of a hind leg still present in pythons. This electron micrograph shows the left limb bud (red) of a python embryo at 24 days of incubation. The wavy lines are embryonic snake scales. Land lizards are the ancestors, Vidal and Blair conclude since "all the other lizards at that time lived on the land." "All lizards are terrestrial," counters biologist Michael Caldwell of the University of Alberta. "The only group to hop out of the water and become truly aquatically adapted is the mosasaurs and perhaps their close relatives, the snakes." Mosasaurs were gigantic aquatic predators with paddle-shaped limbs that apparently died out with the dinosaurs. Indeed, even the mosasaur ancestor was also a "terrestrial land-living lizard — kind of like the proto-whale. The mosasaur ancestor also started out on land and ended up in the sea," says Caldwell. Hedges agrees that mosasaurs were aquatic lizards that evolved from land lizards. But disagrees that snakes are related to mosasaurs. Fossil evidence may support the marine hypothesis — namely, that snakes evolved from mosasaurs. Caldwell and others have found fossil snakes that lived about 95 million years ago in a marine environment. Moreover, they had a "complete hindlimb that extended beyond the body wall" and, thus, may bridge the gap between 4-legged mosasaurs and legless living snakes, says Caldwell. © Michael Caldwell, University of Alberta used with permission A 95-million year old snake (Pachyophis woodwardi) fossil found in marine rocks at Bosnia-Hercegovina. Whichever evolutionary path snakes took — by land or by sea — snakes lost their legs. If snakes came from land lizards, that suggests why limbs disappeared. Proto-snakes might have burrowed underground searching for food in small crevices. Limbs got in the way as they struggled through narrow tunnels. Not just limbs but even more so the "wide shoulders and pelvis" that supported their limbs, says Hedges. The proto-snake limbs shrank and eventually disappeared probably because of changes in the way the Hox genes function. The Hox genes, by the way, control vertebrae development in embryos and, furthermore, the pattern for the entire spine from head to tail. "Examination of limb development in python embryos has revealed evolutionary changes in early limb bud formation that account for limblessness," writes Sean Carroll in his excellent book, Endless Forms Most Beautiful. Consider first the forelimbs of an embryo. Hox genes within any animal control not only how an embryo develops its body parts but also where the parts sprout and grow. Different Hox genes control different parts. Long ago, the Hox genes of limbed-python ancestors (lizards) apparently changed. The genes that controlled their formerly modest chest regions, in effect, told the embryo — grow a chest along the entire trunk and up into the head. Those genes expanded their zone of expression (region of influence) from up into the head to almost the proto-python's tail. All the vertebrae that grow in this region bear ribs, which indicate that these are thoracic vertebrae. The forelimbs of all four-legged vertebrates sprout at the boundary between neck and trunk vertebrae and that boundary — for the proto python — had, in a sense, shifted to the base of the skull since vertebrae with ribs grow that far. But, more importantly, the sharp neck-chest boundary had been eliminated! The vertebrae at skull base also had features of neck bones. "So, the landmark for where to put the limb no longer exists" and no forelimbs develop, says Carroll. A python embryo starts to sprout hind legs but then stops. Martin J. Cohn of the University of Florida and Cheryll Tickle of the University of Dundee investigated why. It turns out that the python Hox genes fail to activate pathways (the apical-ridge and polarizing-region paths) that signal normal limb development. So growth stops. The hind limb bud lacks "key signaling proteins," says Carroll, describing Cohn and Tickle's discoveries. This activation failure may "stem from changes in Hox gene expression that occurred early in snake evolution," say Cohn and Tickle. Further Reading: • Nature:Developmental basis of limblessness and axial patterning in snakes by Martin J. Cohn & Cheryll Tickle, 1999 Jun 3, 399 (6735): 474-9. • Sean B. Carroll. Endless Forms Most Beautiful. New York: W.W. Norton & Company, 2005 • Penn State University: Snake legs were lost terrestrially by S. Blair Hedges & Nicolas Vidal • University of Alberta: Marine snakes of the Tethyan-realm by Michael Caldwell (Answered June 10, 2005) Quote Link to comment Share on other sites More sharing options...
TheShaneCo. Posted April 10, 2008 Share Posted April 10, 2008 Blah blah blah ughhh bleeehhh... Quote Link to comment Share on other sites More sharing options...
Tuff Tone Posted April 10, 2008 Share Posted April 10, 2008 Quote Link to comment Share on other sites More sharing options...
Tuff Tone Posted April 10, 2008 Share Posted April 10, 2008 i hate having to spread props around before i can negaprop again. spread some props this way Quote Link to comment Share on other sites More sharing options...
TheShaneCo. Posted April 10, 2008 Share Posted April 10, 2008 Ha, I love that Tuff Tone managed to come up with an image of my previous comment. Quote Link to comment Share on other sites More sharing options...
Jackson Posted April 10, 2008 Share Posted April 10, 2008 Fuck i wish they didnt have the internet in indiana/illinois. LoLz Quote Link to comment Share on other sites More sharing options...
degrading Posted April 10, 2008 Share Posted April 10, 2008 another failing thread Quote Link to comment Share on other sites More sharing options...
illstate Posted April 10, 2008 Share Posted April 10, 2008 MIMS I THINK U NEED TO CHILL ON ALL THE THREADS.. BEFORE U GET BANNED AGAIN....SNAKES WIT LEGS TA LOCO..LOL Quote Link to comment Share on other sites More sharing options...
seeking Posted April 10, 2008 Share Posted April 10, 2008 naw, nigga caught it now. peace. Quote Link to comment Share on other sites More sharing options...
Avancier2 Posted April 11, 2008 Share Posted April 11, 2008 Im pretty sure snakes with legs are pretty much lizards. Quote Link to comment Share on other sites More sharing options...
eatso Posted April 11, 2008 Share Posted April 11, 2008 haha banned with the quickness. Quote Link to comment Share on other sites More sharing options...
eatso Posted April 11, 2008 Share Posted April 11, 2008 proposed thread hijack topics? Quote Link to comment Share on other sites More sharing options...
Theo Huxtable. Posted April 11, 2008 Share Posted April 11, 2008 Quote Link to comment Share on other sites More sharing options...
SHIT$REAK Posted April 11, 2008 Share Posted April 11, 2008 he got banned before I even got to read the thread... nice. Quote Link to comment Share on other sites More sharing options...
Theo Huxtable. Posted April 11, 2008 Share Posted April 11, 2008 Quote Link to comment Share on other sites More sharing options...
Spitfire15 Posted April 11, 2008 Share Posted April 11, 2008 Quote Link to comment Share on other sites More sharing options...
awkward eye Posted April 11, 2008 Share Posted April 11, 2008 When I was 17 or 18 I worked at a car wash with this dude named Cubby...He was from the woods of Mississippi, when he was a kid his mom told him if you threw a snake into the fire it's legs would come out...He told me that story and I laughed my ass off, Cubby was well into his 20's when he told me this and he still believed it to be true. That's my story about snake legs, hope you enjoyed it. :lol: Quote Link to comment Share on other sites More sharing options...
Tails0nE Posted April 11, 2008 Share Posted April 11, 2008 damn my nigga got banned again? hahaha aint that some shit.... Quote Link to comment Share on other sites More sharing options...
IrishCarBombs Posted April 11, 2008 Share Posted April 11, 2008 theo just had me laughing mad hard with that ed hardy picture i dunno even know why Quote Link to comment Share on other sites More sharing options...
awkward eye Posted April 11, 2008 Share Posted April 11, 2008 When I was 17 or 18 I worked at a car wash with this dude named Cubby...He was from the woods of Mississippi, when he was a kid his mom told him if you threw a snake into the fire it's legs would come out...He told me that story and I laughed my ass off, Cubby was well into his 20's when he told me this and he still believed it to be true. That's my story about snake legs, hope you enjoyed it. :lol: So I did some research and found a little somethin'....scroll down a little and read about the snake in a frying pan...I guess Cubby's mom knew what she was talkin' bout. http://books.google.com/books?id=Oudc1sjV6cgC&pg=PA403&lpg=PA403&dq=Throw+a+snake+in+to+fire&source=web&ots=GqnPbrupTs&sig=TwInsm0_ADjs9DbZhIV_fA5S7Es&hl=en :lol: Quote Link to comment Share on other sites More sharing options...
awkward eye Posted April 11, 2008 Share Posted April 11, 2008 Quote Link to comment Share on other sites More sharing options...
TreSixO Posted April 11, 2008 Share Posted April 11, 2008 so wait.... did snakes evolve from land to the sea, or the other way around Quote Link to comment Share on other sites More sharing options...
AllTheWrongWords Posted April 11, 2008 Share Posted April 11, 2008 These are the only snakes that matter. Ever. Quote Link to comment Share on other sites More sharing options...
shitting Posted April 11, 2008 Share Posted April 11, 2008 All I know si that some skinks (little lizards) can be legless and are still considered lizards rather than snakes. I should know. The only time I saw one was after I rolled a big stone over and a legless skink about 6 inchs long was sitting there. Literally seconds later a kookaburra swept down from the trees above and spirited it away. true story its a jungle out there Quote Link to comment Share on other sites More sharing options...
TheShaneCo. Posted April 11, 2008 Share Posted April 11, 2008 You speak the truth, there are legless skinks that are lizards, not snakes. And some snakes have some weird little bumps next to their wieners that they use for boning, they used to be legs back in the day. Also snakes have "hemi-penis's" which are penises with two heads. Ok, snake report over. Quote Link to comment Share on other sites More sharing options...
TreSixO Posted April 11, 2008 Share Posted April 11, 2008 AUSTRALIA, LOL You guys are like the bizarro world version of the US like, I understand what you said, only not at all Marklar Quote Link to comment Share on other sites More sharing options...
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