Zoology (/ z u ˈ ɒ l ə dʒ i, z oʊ-/) or animal biology is the branch of biology that studies the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems. read more
Usage Note: Traditionally, the first syllable of zoology has been pronounced as (zō), rhyming with toe. However, most likely due to the familiarity of the word zoo (which is merely a shortened form of zoological garden), the pronunciation of the first syllable as (zo͞o) is also commonly heard. read more