An international group of researchers, including Professor L. Mahadevan, has developed a quantitative computational model for the development of villi in the gut of humans and other species.
Read A.E. Shyer1, T. Tallinen, N.L. Nerurkar1, Z. Wei, E.S. Gil, D.L. Kaplan, C.J. Tabin, and L. Mahadevan, "Villification: How the Gut Gets Its Villi," Science, August 29 2013 (online), DOI 10.1126/science.1238842