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.

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Preferred marks the preferred classification for this taxon.

Recognized By Rank Classification
Species 2000 & ITIS Catalogue of Life: April 2013
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Genus
Inventaire National du Patrimoine Naturel Species
Animal Diversity Web Descriptions Genus
BHL: BioDivLibrary's photostream Genus
BOLDS resource for higher-level taxa
BOLDS images II Genus
BOLDS resource for species-level taxa Genus
Conabio Genus
EOL Group on Flickr Genus
IRMNG
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Genus
  • Physeter Linnaeus, 1758
Freshwater and Marine Image Bank, University Libraries, U Washington
Global Biotic Interactions Genus
Gulf of Maine Area CoML resource Genus
IABIN resource Genus
INBio resource Genus
IUCN Red List Genus
IUCN Red List
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Genus
BioLib.cz Import Genus
BioLib.cz Import
Integrated Taxonomic Information System (ITIS)
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Genus
AnAge database Genus
Mammal life history Genus
Taxonomic Hierarchy of COL-China 2012 Mammalia Genus
Mammals Resource Genus
MarLIN resource Genus
NCBI Taxonomy
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Genus
Natural History Museum Species of the day Genus
NatureServe resource Genus
North American Mammals Resource Genus
OBIS Environmental Information
  • Physeter Linnaeus, 1758
OBIS depth range resource Genus
Paleobiology Database
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Genus
PlanetScott.com images
  • Physeter catodon
South African Vertebrates
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Genus
Monthly ARKive text import Genus
Taxonomic Hierarchy of COL-China 2012
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Genus
World Register of Marine Species (WoRMS)
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Genus
Wikimedia Commons Genus
Wikipedia Genus
iNaturalist Images Genus

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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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