Your "third leg", really is your third leg. Or something like that, says scientists.
19 replies, posted
[url]http://time.com/3560279/human-genitals-limbs-formation-harvard-medical-school/[/url]
[url]http://www.bostonglobe.com/news/science/2014/11/05/harvard-researchers-unravel-evolution-genitalia/LVnJz0bvjxmUYz4rWuw7rM/story.html?rss_id=Top-GNP[/url]
[QUOTE]When the first animals scrambled out of the water to live on land, they needed limbs and lungs. And something else: A new way to reproduce.Up on terra firma, prospective parents no longer had the luxury of an aquatic environment where eggs could be laid and sperm released over them.
Evolution elegantly solved the problem, but the solution didn’t always take the same form. Crocodiles, birds, and mammals have one penis. Lizards and snakes have two.
The sex organs of animals are some of evolution’s most diverse handiwork. And yet up until now, scientists haven’t understood exactly how they evolved and take shape at the earliest stages of development.
In a study published [URL="http://dx.doi.org/10.1038/nature13819"]Wednesday in the journal Nature[/URL], researchers at Harvard Medical School have begun to unravel how genitals form. Their tools range from standard biomedical techniques, such as examining which genes are flipped on during embryonic development, to Frankenstein-like surgeries in which they performed surgical transplants to see whether they could trigger genitals to bud in unusual, out-of-the-way spots.
The researchers found that genitals develop from the same cells that give rise to hind legs in lizards or that form the remnants of limb buds in snakes. In mammals and birds, a different set of cells closer to the tail area give rise to genitalia. Despite the different source materials, they found the process of genitalia formation is deeply similar between those creatures, triggered by the same basic genetic programs and signals. That process is, in turn, similar to the way limbs form, suggesting that genitals and limbs share evolutionary origins.[/QUOTE]
So THAT'S why unfortunate camera angles always makes kneecaps look like massive erections!
Explain the [URL="http://i.imgur.com/Ar0RP.jpg"]echidna[/URL].
Four dicks. [I]Four. Dicks.[/I]
[sp]Fine I'll not hotlink it, because apparently, SOME PEOPLE are PUSSIES who don't wanna see ECHIDNA HYDRA DICKS. Prudes.[/sp]
[QUOTE=Riller;46422520]Explain the echidna.
gross
Four dicks. [I]Four. Dicks.[/I][/QUOTE]
can you like spoiler tag that m8
Animal dick researcher.
What a job.
[QUOTE=nutcake;46422592]Animal dick researcher.
What a job.[/QUOTE]
Writin' a Ph.D and citing e621 as a source.
I guess you can say I kick my girlfriend a lot, then :v:
sure! make fun of him for being a dick researcher.
Atleast he's making money out of it.
Here we sit instead, reading about animal dicks.
[quote]to Frankenstein-like surgeries in which they performed surgical transplants to see whether they could trigger genitals to bud in unusual, out-of-the-way spots.[/quote]
"Hey honey, what did you do today at work?"
"Oh, nothing dear, just put a dick on a frog's head. We're calling the species 'dickhead'."
[QUOTE=Riller;46422520]Explain the [URL="http://i.imgur.com/Ar0RP.jpg"]echidna[/URL].
Four dicks. [I]Four. Dicks.[/I]
[sp]Fine I'll not hotlink it, because apparently, SOME PEOPLE are PUSSIES who don't wanna see ECHIDNA HYDRA DICKS. Prudes.[/sp][/QUOTE]
What the fuck knuckles
[QUOTE=Riller;46422520]Explain the [URL="http://i.imgur.com/Ar0RP.jpg"]echidna[/URL].
Four dicks. [I]Four. Dicks.[/I]
[sp]Fine I'll not hotlink it, because apparently, SOME PEOPLE are PUSSIES who don't wanna see ECHIDNA HYDRA DICKS. Prudes.[/sp][/QUOTE]
Cut off one dick and two grow in the place of the last one. Call in Heracles for some help over here.
So black people really are behind on the evolutionary running track
I bet when he first found these results, he must have thought he had cocked up somewhere.
[QUOTE=Riller;46422597]Writin' a Ph.D and citing e621 as a source.[/QUOTE]
"The first known drawings of a hedgehog's genitalia are here by an artist who has tagged the photo "Sonicthehedgehunk" and are believed do date back a couple years ago"
[QUOTE=Grindigo;46422808]Cut off one dick and two grow in the place of the last one. Call in Heracles for some help over here.[/QUOTE]
If Hailing Hydra gets me twenty dicks, let's get this Nazi party going.
[QUOTE=Sir M;46423827]"The first known drawings of a hedgehog's genitalia are here by an artist who has tagged the photo "Sonicthehedgehunk" and are believed do date back a couple years ago"[/QUOTE]
reminded me of [url=http://40.media.tumblr.com/b745bb1e9901798e6b8eb8034574835d/tumblr_n7bp3u9ATB1qkvbwso1_500.png]this[/url] - "let it be known the first humans capable of imagination immediately invented furries"
I kick vagina
[QUOTE=-Iker-;46422698]What the fuck knuckles[/QUOTE]
Wait a second... four...?
[img]http://i.imgur.com/g6AhEZL.png[/img]
[QUOTE=nutcake;46422592]Animal dick researcher.
What a job.[/QUOTE]
Can we just take a moment to appreciate the fact that there are people out there who stare at, prod at, experiment with, and are fascinated with: animal dicks.
[QUOTE=Necrotic Fever;46424419]Wait a second... four...?
[img]http://i.imgur.com/g6AhEZL.png[/img][/QUOTE]
[t]http://i.imgur.com/4TbMlni.png[/t]
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