Why Do We Have Two Nostrils?

LINKS:

http://www.twitter.com/tweetsauce
http://facebook.com/VsauceGaming
music by: http://www.youtube.com/JakeChudnow

Sound localization: http://www.diracdelta.co.uk/science/source/d/u/duplex%20theory%20of%20localization/source.html

Depth perception: http://nathanclarkecommunication.wikispaces.com/Depth+perception

Why do we have two nostrils instead of one?

http://bit.ly/QXHsLZ
http://news.stanford.edu/news/1999/november10/smell-1110.html

What does space smell like?

http://www.popsci.com/science/article/2011-01/fyi-what-does-space-smell
http://dsc.discovery.com/space/im/smell-space-steve-pearce.html

Polycyclic Aromatic Hydrocarbons: http://en.wikipedia.org/wiki/Polycyclic_aromatic_hydrocarbon

Raspberry and Rum in space: http://npr.tumblr.com/post/26911769516/sciencesoup-what-does-space-smell-like-its

olfactory fatigue: http://en.wikipedia.org/wiki/Olfactory_fatigue

Memories and smell: http://psychology.about.com/od/memory/ss/ten-facts-about-memory_8.htm

Westermarck effect: http://en.wikipedia.org/wiki/Westermarck_effect

Name for a person who can’t smell: http://en.wikipedia.org/wiki/Wikipedia:Reference_desk/Archives/Language/2009_February_9