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
view in classification
IUCN Red List Genus
Animal Diversity Web Descriptions Genus
BHL: BioDivLibrary's photostream Genus
BOLDS resource for higher-level taxa
  • Addax
BOLDS images II Genus
BOLDS resource for species-level taxa Genus
EOL Group on Flickr Genus
EOL Group on Flickr Genus
Global Biotic Interactions Genus
Global Biotic Interactions Genus
AnAge database Genus
IUCN Red List
view in classification
Genus Import
  • Addax Laurillard, 1841 Import Genus
Integrated Taxonomic Information System (ITIS)
view in classification
Life History Characteristics of Placental Non-Volant Mammals Genus
Mammal life history Genus
NCBI Taxonomy
view in classification
Monthly ARKive text import Genus
Wikimedia Commons Genus
Wikipedia Genus
iNaturalist Images Genus


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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