Scientists aim to describe a single 'tree of life' that reflects the evolutionary relationships of living things. However, evolutionary relationships are a matter of ongoing discovery, and there are different opinions about how living things should be grouped and named. EOL reflects these differences by supporting several different scientific 'classifications'. Some species have been named more than once. Such duplicates are listed under synonyms. EOL also provides support for common names which may vary across regions as well as languages.

Preferred marks the preferred classification for this taxon.

Recognized By Rank Classification
Species 2000 & ITIS Catalogue of Life: April 2013
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Life History Characteristics of Placental Non-Volant Mammals Species
  • Arctocephalus australis
Animal Diversity Web Descriptions
AquaMaps Resource
BOLDS images II Species
BOLDS resource for species-level taxa
Biome & Ecoregion Resource Species
DiscoverLife map resource
  • Arctocephalus australis
EOL Group on Flickr
Global Biotic Interactions Species
IABIN resource
IUCN Red List
IUCN Red List
view in classification Import
Integrated Taxonomic Information System (ITIS)
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Inventaire National du Patrimoine Naturel Species
Life History Characteristics of Placental Non-Volant Mammals-to be deleted- Species
Anage Data
Macroecological database of mammalian body mass-to be deleted- Species
Macroecological database of mammalian body mass Species
  • Arctocephalus australis
Mammal life history
Milk Chemical Data Species
NCBI Taxonomy
view in classification
OBIS Environmental Information
  • Arctocephalus australis Zimmerman, 1783
Paleobiology Database
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Phthiraptera Species
SPIRE resource
  • Arctocephalus australis
Social systems of mammalian species-to be deleted- Species
Social systems of mammals Species
  • Arctocephalus australis
AnAge database
IUCN Structured Data outlinks
Wikimedia Commons
iNaturalist Images Species


EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

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