Tunicate out of body experience

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Uploaded by on Sep 7, 2006

Extra-somatic cell migration by blood cells in the head of a primitive chordate larvae, Boltenia villosa. If you look to the upper right you'll see a cell escape from the body through a tunnel which connects with the surrounding seawater.

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Uploader Comments (BoogleDavidson)

  • Strange i was not notified of your reply ...thank you for your response.I will look up the reference .I am developing a theory that has as part of it the idea of the mobile hive .Your answer fits into that some what. Thanks again

  • I would be interested to hear more about your mobile hive theory, I am assuming that this is in reference to the interactions and heirarchy among the cells within an organism? There is some theoretical work on this by LW Buss that you might find interesting.

  • I have not observed this. Normally the head would be pressed against an underwater rock or float and so the cells coming out would probably crawl around on this surface. I think they are there to sense and maybe attack bacteria or other microbes. See A molecular analysis of ascidian metamorphosis reveals activation of an innate immune response.Development. 2002 Oct;129(20):4739-51. for more info. Thanks for the question!

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  • Have you ever observed one reentering the body ?

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