Spesies: Perbedaan antara revisi

Jumlah total spesies non-[[bakteri]]l dan non-[[arkea]]l di dunia diestimasikan 8,7 juta,<ref name="plos">{{cite journal | author= Mora, C. | title=How Many Species Are There on Earth and in the Ocean?|journal=[[PLoS Biology]]|date=23-08-2011|doi=10.1371/journal.pbio.1001127 | editor1-last= Mace | editor1-first= Georgina M | last2= Tittensor | first2= Derek P. | last3= Adl | first3= Sina | last4= Simpson | first4= Alastair G. B. | last5= Worm | first5= Boris | volume= 9 | issue= 8 | pages= e1001127 | pmid=21886479 | pmc=3160336|display-authors=etal}}</ref><ref name="Guardian">{{Cite news |date =23-08-2011 |title =Planet Earth is home to 8.7 million species, scientists estimate

|url =http://www.guardian.co.uk/environment/2011/aug/23/species-earth-estimate-scientists

|accessdate =24-02-2014 |location=London |work=The Guardian |first=Suzanne |last=Goldenberg |deadurl = no|archiveurl = https://web.archive.org/web/20130930184419/http://www.theguardian.com/environment/2011/aug/23/species-earth-estimate-scientists|archivedate = 30-09-2013}}</ref> dengan kisaran estimasi sebelumnya dari dua hingga seratus juta.<ref name="SciDaily">{{cite web | date =26-05-2003| title =Just How Many Species Are There, Anyway? | url =http://www.sciencedaily.com/releases/2003/05/030526103731.htm | accessdate =24-02-2014|deadurl = no|archivedate = 28-05-2003|archiveurl = https://web.archive.org/web/20030528081017/http://www.sciencedaily.com/releases/2003/05/030526103731.htm|publisher = Science Daily}}</ref>