EARTH

EARTH. ANIMAL SCIENCE.

Zoology (/zuːˈɒlədʒi, zoʊˈɒlədʒi/) 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. The term is derived from Ancient Greekζῷον, zōion, i.e. "animal" and λόγος, logos, i.e. "knowledge, study"