Barbara,
Perhaps matching the composition of milk to the growth and maturation
requirements of human infants would make a good project.  Human milk has
many trophic (growth and maturity promoting at the cellular/tissue
levels) functions...intestinal closure (lactose);immune system
development, etc.  The basic immaturity of the human infant is
particularly marked in the nervous, digestive, and immune systems.  Human
milk is perfectly suited to both help these systems mature, and to
compensate for their immaturity (bile salt activated lipases compensate
for the infants relative inability to metabolise fats).  Good luck, this
kind of project can make a big impact on your classmates, and
professor.
--
Catherine Watson Genna, IBCLC  NYC  [log in to unmask]