zoology

Zoology (from Greek: ζῴον, zoion, "animal"; and λόγος, logos, "knowledge") is the biological discipline which involves the study of animals.
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(n.)
That part of biology which relates to the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct.
  

(n.)
A treatise on this science.
  

Noun
1. the branch of biology that studies animals
(synonym) zoological science
(hypernym) biology, biological science
(hyponym) entomology, bugology
(class) anterior