About: http://webisa.webdatacommons.org/392162963

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Before airplanes, trains, or cars existed, species migrations were limited because they were bounded by natural barriers such as oceans or mountains; as a result, those migrations would only occur at a very slow rate.
http://www.w3.org/ns/prov#wasQuotedFrom	duke.edu