a person who studies people but not an psychologist
caladarian
a mathematician
A Geologist, Exogeologist, Theoretical Planetologist, and perhaps also an Astronomer
demographist
Cardiology is the study of hearts, so a cardiologist would be a doctor who deals with hearts.
A person who studies genealogies is a genealogist.
A person who studies philosophy is called a philosopher.
A person who studies organisms is called a biologist.
a person who studies people but not an psychologist
a person that studies gems is called a gemologist.
what do you call somebody who studies snails.
A person who studies birds is called an ornithologist.
A person who studies birds is called an Ornitholoigst
A person who studies poisons is called a toxicologist.
A person who studies lichens is called a lichenologist.
A person who studies theology is called a theologian.