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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Family
MarLIN resource Family
Anage Data Family
Animal Diversity Web Descriptions Family
Animal Diversity Web Descriptions
AquaMaps Resource Family
BOLDS resource for higher-level taxa
BOLDS resource for higher-level taxa
BOLDS images II Family
BOLDS resource for species-level taxa Family
Conabio Family
Number of DNA and specimen records in GGBN Family
  • Balaenidae
EOL Metrics Family
  • Balaenidae
Environments Family
Freshwater and Marine Image Bank, University Libraries, U Washington
Gulf of Maine Area CoML resource Family
IABIN resource Family
IUCN Red List Family
IUCN Red List
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Family
BioLib.cz Import
Integrated Taxonomic Information System (ITIS)
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Family
MCZ resource Family
Mammal life history Family
Mammalia Family
Mammals Resource Family
AnAge database Family
NCBI Taxonomy
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Family
NatureServe resource Family
North American Mammals Resource Family
Number of pages in BHL Family
  • Balaenidae
Number of records in GBIF Family
  • Balaenidae
Number of sequences in GenBank Family
  • Balaenidae
Number of specimens with sequence in BOLDS Family
  • Balaenidae
OBIS Environmental Information
  • Balaenidae
OBIS depth range resource Family
Paleo DB Families
  • Balaenidae
Paleobiology Database
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Family
SPIRE resource Family
Sloan-CoML NameLink Project
  • Balaenidae
South African Vertebrates
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Family
Monthly ARKive text import Family
IUCN Structured Data Family
Taxonomic Hierarchy of COL-China 2012
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Family
World Register of Marine Species (WoRMS)
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Family
Wikimedia Commons Genus
Wikimedia Commons Family
Wikimedia Commons
Wikipedia Family
Wikipedia
iNaturalist Images Family
iSpot southern Africa Family

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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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