Answer:
Peahens often choose males for the quality of their trains -- the quantity, size, and distribution of the colorful eyespots. Experiments show that offspring of males with more eyespots are bigger at birth and better at surviving in the wild than offspring of birds with fewer eyespots.
The answer 4 the above question sounds like a vitamin D deficiency.
Yes, short answer, I can not give you the specifics (consult your biology textbook)
