<p>Cetartiodactyls are found the world over, from north of the Arctic Circle to the waters surrounding Antarctica. <span class="taxon">artiodactyla</span> are native to all continents except Antarctica and Australia, and some <span class="taxon">artiodactyla</span> are domesticated and have been introduced around the world by humans. <span class="taxon">cetacea</span> inhabit all of the world's oceans and some freshwater lakes and rivers in South America, North America, and Asia.<span> (Nowak, 1999; Rice, 1984; Simpson, 1984)</span></p>  <p><strong>Biogeographic Regions: </strong>Nearctic; Nearctic :: Introduced; Nearctic :: Native; Palearctic; Palearctic :: Introduced; Palearctic :: Native; Oriental; Oriental :: Introduced; Oriental :: Native; Ethiopian; Ethiopian :: Introduced; Ethiopian :: Native; Neotropical; Neotropical :: Introduced; Neotropical :: Native; Australian; Australian :: Introduced; Arctic Ocean; Arctic Ocean :: Native; Indian Ocean; Indian Ocean :: Native; Atlantic Ocean; Atlantic Ocean :: Native; Pacific Ocean; Pacific Ocean :: Native; Mediterranean Sea; Mediterranean Sea :: Native</p><p><strong>Other Geographic Terms: </strong>Holarctic; Cosmopolitan</p>