First published in 1876, this two-volume treatise codifies the world's fauna into six zoogeographic realms: Palearctic, Nearctic, Neotropical, Ethiopian, Oriental, and Australasian, and explains their boundaries through geology, climate, and barriers to dispersal. Wallace integrates exhaustive catalogues with interpretive chapters, using maps, synoptic tables, and bathymetric clues such as shallow seas to infer past connections. Extending P. L. Sclater's avian scheme to vertebrates, his methodical prose offers a Darwinian, historical account that makes biogeography a synthetic science. Wallace's argument grows from lived experience. Years in the Amazon and the Malay Archipelago, where he traced the Wallace Line between Bali and Lombok, gave him intimate knowledge of island faunas, endemism, and migration barriers. As co-formulator of natural selection and an indefatigable collector for museums, he turned field notes, specimen lists, and correspondence with Darwin, Huxley, and Sclater into a principled framework for why species occur where they do. Scholars of evolution, macroecology, and the history of science will find this foundational synthesis indispensable; conservationists and systematists will value its durable logic and global scope. Read it for empirical rigor and conceptual clarity: a master class in converting natural history into theory, and in learning to read the map of life. Quickie Classics summarizes timeless works with precision, preserving the author's voice and keeping the prose clear, fast, and readable-distilled, never diluted. Enriched Edition extras: Introduction · Synopsis · Historical Context · Author Biography · Brief Analysis · 4 Reflection Q&As · Editorial Footnotes.

Alfred Russel Wallace (1823-1913) was a British naturalist, explorer, geographer, anthropologist, biologist and illustrator. He is best known for independently conceiving the theory of evolution through natural selection; his paper on the subject was jointly published with some of Charles Darwin's writings in 1858. Wallace was considered the 19th century's leading expert on the geographical distribution of animal species and is sometimes called the "father of biogeography""."