<http://webisa.webdatacommons.org/215191863> <http://www.w3.org/ns/prov#value> "The second is that speciation, the development of reproductive isolation, is a process that requires a long time." . <http://webisa.webdatacommons.org/prov/217493804> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/215191863> . <http://webisa.webdatacommons.org/215191863> <http://www.w3.org/ns/prov#wasQuotedFrom> <nap.edu> . <http://webisa.webdatacommons.org/215191863> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> .