A Herpetologist (I think I spelled it correctly)
A crocodile is a large reptile. A scientist who studies reptiles is a herpetologist.
A person who studies volcanoes is called a volcanologist.
a person that studies gems is called a gemologist.
A person that studies animals is called a Zoologist.
A person who studies planets and galaxies is called an astronomer. Is that the answer you were looking for?
Astronomer .
The Person Who studies about mamals , he is called mamalogist....
A person who studies volcanoes is called a volcanologist.
A person who studies the grass and soil, etc. is called a Agrostologist
A person who studies or writes history is called a historian.
A person who studies geology is a geologist.
A person who studies culture is called an anthropologist.
a person that studies gems is called a gemologist.
A person who studies bees is called an apiologist.
They are just called crocodiles because all crocodiles are cold-blooded. Although they are called crocodiles, there are different species of crocodiles.
A person who studies audiology would be called an audiologist.
A person who studies the planets and stars is an astrologist.
A person who studies water and its properties is called a Hydrogeologist.