<P> Further, each kingdom is broken down recursively until each species is separately classified . The order is: Domain; kingdom; phylum; class; order; family; genus; species . The scientific name of an organism is generated from its genus and species . For example, humans are listed as Homo sapiens . Homo is the genus, and sapiens the specific epithet, both of them combined make up the species name . When writing the scientific name of an organism, it is proper to capitalize the first letter in the genus and put all of the specific epithet in lowercase . Additionally, the entire term may be italicized or underlined . </P> <P> The dominant classification system is called the Linnaean taxonomy . It includes ranks and binomial nomenclature . The classification, taxonomy, and nomenclature of zoological organisms is administered by the International Code of Zoological Nomenclature . A merging draft, BioCode, was published in 1997 in an attempt to standardize nomenclature, but has yet to be formally adopted . </P> <P> Ethology is the scientific and objective study of animal behavior under natural conditions, as opposed to behaviourism, which focuses on behavioral response studies in a laboratory setting . Ethologists have been particularly concerned with the evolution of behavior and the understanding of behavior in terms of the theory of natural selection . In one sense, the first modern ethologist was Charles Darwin, whose book, The Expression of the Emotions in Man and Animals, influenced many future ethologists . </P> <P> Biogeography studies the spatial distribution of organisms on the Earth, focusing on topics like plate tectonics, climate change, dispersal and migration, and cladistics . The creation of this study is widely accredited to Alfred Russel Wallace, a British biologist who had some of his work jointly published with Charles Darwin . </P>

Name the branch of zoology that deals with the scientific study of animal behaviour