title: What sparked the Cambrian explosion?
authors.forename: Douglas
authors.initials: D
authors.lastname: Fox
mesh_terms: D000332:Aerobiosis; D000818:Animals; D059001:Aquatic Organisms / Q000302:isolation & purification / Q000502:physiology*; D044822:Biodiversity; D005075:Biological Evolution; D060435:Carnivory / Q000502:physiology; D057894:Coral Reefs; D020387:Food Chain; D005580:Fossils; D019015:Geologic Sediments / Q000737:chemistry; D049690:History, Ancient; D008954:Models, Biological; D010100:Oxygen / Q000032:analysis / Q000378:metabolism*; D011235:Predatory Behavior / Q000502:physiology*
chemical_list: D010100:Oxygen