All scientist study science so every one you could think of :)
A scientist is someone who studies science.
Botanists study botany, which is part of life science
A Forensic Scientist.
Sports Scientist
Leonard Martins
A person who studies Political Science is called a political scientist.
geologist
physicist
An ecologist studies pollution
A mineralogist studies minerals.
An oceanographer is a scientist who studies oceanology, the branch of science dealing with physical and biological aspects of the oceans.
The kind of scientist who studies Urology would be a Biologist, since Urology concerns a biological function (urination). If you mean the kind of doctor who studies Urology, that would be a Urologist.