That article has a very peculiar comment: http://theweek.com/article/index/246703/the-worm-that-regrow...

I hesitate to copy and paste the entire comment, lest I be flagged by an algorithm for spamming, but it uses Latin-like characters to write some typical spam about making money from home. Then, it has a link to the following site:

    viewmore------------------------------------------.qr.net/kkEj

After that link, the comment continues with an extremely interesting tidbit that relates to the article, full of manual line breaks. I can't find it anywhere else online:

    We replicated the results of a 
    similar experiment in a class I took in 1976, and also another one 
    that's even stranger. We trained planaria, killed them, dried them, and 
    fed them to untrained planaria. The training times for the untrained 
    planaria were shortened. Our experiments used planaria reactions to 
    light and subsequent electric shock, not food-finding behavior.

Is someone being paid to come up with original, relevant-sounding content to post alongside spam? That text does not look machine generated.