Keisha Wilchcombe
a scatologist
The name for a gem expert is a gemologist. They are experts in natural and artificial gems.
A person that studies or researches dinosaur are called Paleontologists.
Ichthyologists are scientists that study fish
Firstly, koalas are not bears.There is no particular name for someone who studies koalas.People who study the field of animal Biology are zoologists. While there are specialised areas within this broad parameter (such as ornithologists, who study birds), there is no particular name for one who studies koalas. It is too narrow a field.
The name of a scientist that studies sports is called a sports scientist.
An arachnologist
A scientist who studies crystals is known as a Crystallographer.
A scientist who studies animals is called a zoologist.
A scientist who studies animal life is a zoologist. There is no particular name for a scientist that specialises in platypuses.
The name of the scientist that studies artifacts remains of cultures from the past is an archeologist.
The name for this type of scientist is a teuthologist
This answer is a entomologistA scientist who only studies fish is called an ichthyologist.
environmentalist
ecologist
Astronomer
A botanist