original_query: What are the major scientific fields that the Muséum des sciences naturelles d'Angers focuses on?
query: What are the major scientific fields that the Muséum des sciences naturelles d'Angers focuses on?
answer: The Muséum des sciences naturelles d'Angers's collections are classified into four major scientific fields: botany, zoology, earth sciences, and prehistory.  It also has smaller collections in ethnology, technology, and fine arts.