Makes sense. I have read many more math, stats and econ papers than bioscience. In there areas there tends to only be a few authors. Often there is an acknowledgement of some helped received either in the paper or at th bottom of the first page. In these areas paper are written by individuals rather than organizations. Bioscience takes much more infrastructure and coordination as well as being much more expensive.

Still seems crazy that eight "authors" should get credit for this article.