The Laryngeal Nerve of the Giraffe is Proof of Natural Selection
By - - CHANNEL 4 (VIA GRRLSCIENTIST 2010)
Added: Fri, 03 Aug 2012 17:05:58 UTC
This was previously posted in 2010 on rd.net. It's discussed in detail in both The Greatest Show on Earth and in Jerry Coyne's Why Evolution is True and is certainly worth watching - or watching again.
This video, including comments by Richard Dawkins, documents a necropsy (an autopsy on an animal other than a human) carried out in a classroom on a giraffe. In this video, we follow the pathway of the recurrent (inferior) laryngeal nerve, an important nerve that is a branch of the Vagus nerve (tenth cranial nerve). The recurrent (inferior) laryngeal nerve, which branches off the Vagus nerve at the base of the brain, travels down the neck, around the arteries of the heart and travels back up the neck to ennervate the larynx, or voice box, thereby providing motor function. The purpose of doing this exercise is to show that there is no so-called “intelligent designer” because the pathway of this nerve is completely illogical — unless, of course, you accept that evolution is the reason for this nerve’s convoluted pathway through the body.
Richard Dawkins Demonstrates Laryngeal Nerve of... by blindwatcher
Original link to this video and others on the Channel 4 website (note: only viewable in the UK)
View this article on the new RDF beta site
Dave Mosher - National Geographic Comments
The sun is the roundest natural object ever precisely measured, astronomers say.
Geraint Jones - The Guardian Comments
Scientists who encoded the book say it could soon be cheaper to store information in DNA than in conventional digital devices
Ed Yong - Nature News Comments
Under the supervision of guards and graduate students, a small group of prisoners is breeding the beautiful orange-and-white insects in a greenhouse outside the prison. They have even carried out research to show what plants the butterfly prefers to lay its eggs on.
- - Scientific American Comments
Teachers, scientists and policymakers have drafted ambitious new education standards. All 50 states should adopt them
John Roach - NBC News Comments
An artificial “brain” built by a 17-year-old whiz kid from Florida is able to accurately assess tissue samples for signs of breast cancer, providing more confidence to a minimally invasive procedure.
MORE BY -
- - BBC News Comments
A new poll suggests that atheism is on the rise in the US, while those who consider themselves religious has dropped. What's the cause? Two writers debate.
- - Top Documentary Films Comments
Documentary about ongoing events in Uganda, where many question whether the growing influence of American religious groups has led to a movement to make homosexuality a crime punishable by death.
- - URMC Comments
Newer Imaging Technique Brings ‘Glymphatic System’ to Light
- - human rights first Comments
Blasphemy Laws Exposed: The Consequences of Criminalizing “Defamation of Religions”
- - YouTube - townsquare Comments
Cara Santa Maria (Senior Science Correspondent, Huffingtonpost.com) leads this week's panel on 'The Point' to discuss these issues and more with Michael Shermer (Publisher - Skeptic Magazine), Sean Carroll (Theoretical Physicist - Caltech), and Edward Falzon (author of 'Being Gay Is Disgusting').
- - Ancestors Trail Walk Comments
WALK DARWIN’S TREE OF LIFE ~ 26 AUGUST 2012 - event begins on Saturday 25 August