FWIW yes I agree I added this not too long ago June 20 2013 but was reverted perhaps for good reason if interested the earlier edit was as follows Copied from June 20 2013 article revision On June 19 2013 scientists reported that the reason cancerproof laboratory animals do not get cancer may be because they produce an extremely high molecular mass hyaluronan which is over five times larger than that in cancer prone humans and cancer susceptible laboratory animals ref name NYT 20130619 ref name NATURE 20130619 in any case Enjoy