A scientist that studies bears would be called an ursinologist.
An aviologist.
pomology
A scientist that studies motion, forces and energy would be called a physicist.
A scientist is someone who studies science.
A biotechnology scientist.
An Oceanographer. Marine Biologist, that sort of thing.
A scientist that studies viruses is called a virologist.
A scientist who studies mollusks is called a teuthologist.
A scientist that studies bears would be called an ursinologist.
virologist
An aviologist.
Bridgeologist
astronomer
A meteorologist.
biologist
A vulcanologist