Detailed Instructions: In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Problem:Island dwarfism , or insular dwarfism , is the reduction in size of large animals over a number of generations .
Solution:
Insular dwarfism , a form of phyletic dwarfism , is the process and condition of large animals evolving or having a reduced body size when their population 's range is limited to a small environment , primarily islands .