The mammals that conquered the seas.
Wong
Kate
K
ScientificAmerican.com
D000818:Animals; D001188:Artiodactyla / Q000235:genetics; D005075:Biological Evolution; D002591:Cetacea / Q000235:genetics; D004247:DNA / Q000032:analysis*; D005580:Fossils; D009792:Oceans and Seas; D010154:Pakistan; D014907:Whales / Q000033:anatomy & histology / Q000235:genetics*
D004247:DNA