Sea urchin egg – adventures continue 

This is a video that I captured using time lapse on my foldscope of a sea urchin egg; right after fertilization. I am still trying to wrap my head around all the events – but I wanted to share the video; before I write what I know about the series of events. 

Watch a giant single cell trying to divide; this one fails to undergo first mitosis division. Incredibly beautiful.. 

The first puzzle to solve here is te clear rufflig membrane. I am looking for any place else this observation is reported – but can not seem to find it as yet. I will follow this with a details post of elements that can be identified – in the mean time; enjoy the video and look out for single cells in your back yard. 



4 Comments Add yours

  1. laksiyer says:

    @Manu. This is exquisite. A lot has been written about this process in the early 1900s. The shaking is amazing, it is almost like the egg is exerting effort to divide.

  2. TacomaRocks says:

    @manu sadly this video is no longer here (or maybe I just cannot see it). Sad. I too have just did some embryonic experiments and observations using the Foldscope. Once again, I’m so impressed with this microscope. Thank you for giving it to the world!

    1. Manu Prakash says:

      Will find and link it again.

      1. TacomaRocks says:

        Thanks! Is there a tutorial on how to upload a video? I can’t seem to get one to load or find info on how to get it done. Thanks!

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