Chain of worms (IMAGE)

Washington University in St. Louis

Chain of worms

Caption

A “chain of worms” is initiated when Pristina starts forming and differentiating a new head and tail segments from within a single body segment. In this image, worm 2 is made first and then worm 3 starts forming in between the original worm and worm 2. 

Credit

Eduardo Zattara and B. Duygu Özpolat

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