Describe the evolution of the lymphatic system.

Evolution of the Lymphatic System

This is for a college, sophomore, honrors level class, for a class that combines Cosmology, Geology, and Biology.
Standard MLA: 12 size font, Times New Roman, Double Spaced. Minimum length of 9 pages, NOT including illustrations.
The theme of this paper is to be the Evolution or Emergence of something. In this case, the evolution of the Lymphatic System, where it came from, how and why it might have evolved, etc. Minimum of 11 sources, and there must be more book sources than internet sources (or at least as many book sources as internet sources.) Internet sources should be primarily scholarly/professional sites, rather than just small blurbs and small summaries of information. If all else fails, instead of the evolution of the lymphatic system, the topic may instead by the development of the lymphatic system (ie from a fertilized embryo to a full grown human, how the lymphatic system grows). For more instruction/clarification, see attached files and also you may contact me. Unfortunately, I will need just a few “status updates”-that is I will need to see how the work is coming along. Thank you.