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Sea Squirt Regrows Entire Body from One Blood Vessel

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posted on Mar, 6 2007 @ 02:40 PM
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Sea Squirt Regrows Entire Body from One Blood Vessel


www.livescience.com




Our closest invertebrate relative, the humble sea squirt, can regenerate its entire body from just tiny blood vessel fragments, scientists now report.


The entire regeneration process, which in part resembles the early stages of embryonic development, can produce an adult sea squirt in as little as a week.


Video: Skimming the Seabed

The finding could illuminate not only the evolutionary origins of regeneration in all organisms, but also subsequent changes to it during vertebrate evolution.


Vertebrates (animals with backbones) such as salamanders are capable of regenerating limbs or tails, and even humans are capable of regenerating portions of skin, lungs and livers.

(visit the link for the full news article)




posted on Mar, 6 2007 @ 02:40 PM
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This is absolutely amazing. Out of 95 fragments, 80 of them regenerated themselves completely. The fragments were extremely tiny, I quote from the article"

"The scientists removed fragments of blood vessels from the colonies and placed them on microscope slides for investigation. Each roughly one-millimeter-long fragment contained one or more ampullae, which are the pear-shaped endpoints of the vessels, as well as 100 to 300 blood cells."

www.livescience.com
(visit the link for the full news article)



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