Dmographics
Demographers.
These scientists are called anthropologists.
The study of human anatomy that we can see with our eyes is called gross anatomy.
anthropometry
Biology OR Anatomy
You'd call them a sociologist if they study society and group behavior or a psychologist when it involves just one subject.
Environmentalists
Cultural Anthropology, social anthropology, physical anthropology
A person who studies human bones may be known as an Osteologist. Physical anthropologists may also study human bones. People who study animal bones from archaeological sites are known as zooarchaeologists.
are you joking? the population has nothing to do with how the moon works. how dare you call yourself a human for not knowing how stupid that sounds.
This happens through site investigations. The course of study the deals with the study of ancient human history and earth remains is call archaeology.
A cultural Anthropologist, though I would not call them scientists.Perhaps a Sociobiologist or a Human Behavioral Ecologist would be more scientifically inclined here.