How does Demographics do research on population size
Your question is a bit difficult to understand. Perhaps you mean to ask: Question: What do you call someone who studies the statistics related to human populations? Answer: A demographer. http://en.wikipedia.org/wiki/Demographics
studies of population is how many people are in an area
African Population Studies was created in 1986.
Someone who studies evolution is called Evolutionary Biologist.
Asian Population Studies was created on 2011-01-20.
Copenhagen Institute for Futures Studies's population is 28.
Someone who studies cryogenics is called a cryogenicist.
A historian studies history.
gi
The name for someone who studies caves is a speleologist or a spelunker.
A psychologist is the proper name for someone who studies the mind.
Potato skins.