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 the mind and behavior is called a psychologist.
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.
A person who studies philosophy is called a philosopher.
Karl V. Krombein has written: 'A revision of the Melanesian wasps of the genus Cerceris Latreille (Hymenoptera: Sphecidae)' -- subject(s): Cerceris, Wasps 'Biosystematic studies of Ceylonese wasps, VIII' -- subject(s): Classification, Hymenoptera, Insects 'Biosystematic studies of Ceylonese wasps, XV' -- subject(s): Classification, Insects, Sphecidae 'Biosystematic studies of Ceylonese wasps, XX' -- subject(s): Classification, Insects, Tachysphex, Wasps 'Catalog of hymenoptera in America north of Mexico' -- subject(s): Insects, Hymenoptera 'Life history notes on some Egyptian solitary wasps and bees and their associates (Hymenoptera: Aculeata)' -- subject(s): Bees, Insects, Solitary wasps 'Trap-nesting wasps and bees: life histories, nests, and associates' -- subject(s): Bees, Wasps 'Trap-nesting wasps and bees' 'Revision of North American Liris Fabricius (Hymenoptera:Sphecoidea:Larridae)' -- subject(s): Classification, Insects, Liris 'Biosystematic studies of Ceylonese wasps, XI' -- subject(s): Hymenoptera, Identification, Insects, Wasps 'Biosystematic studies of Ceylonese wasps, XVI' -- subject(s): Classification, Gastrosericus, Insects 'Biosystematic studies of Ceylonese wasps, XXI' -- subject(s): Classification, Wasps
A person who studies the grass and soil, etc. is called a Agrostologist