Species and status
Species and taxonomy databases
Names, threat status, distributions and the records behind them.
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GBIF
Global occurrence records
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IUCN Red List
Global threat assessments
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Catalogue of Life
Names backbone
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ITIS
Taxonomic names, strongest for North America
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Encyclopedia of Life
Species pages and an education arm
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NatureServe Explorer
Conservation status ranks including plants and invertebrates, North America
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Species+
CITES and CMS listings per species
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Map of Life
Range maps and indicators
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Reptile Database
Reptile taxonomy
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Amphibian Species of the World
Amphibian taxonomy
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AmphibiaWeb
Amphibian species accounts
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Amphibian Conservation Needs Assessments
Per-species conservation needs
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Mammal Diversity Database
Mammal taxonomy
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All The World's Primates
Primate species accounts
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Elephant Database
Elephant records
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Rhino Resource Center
Rhino literature and images
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AnimalBase
Early zoological names and types
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Avian Knowledge Network
Bird data network
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FishBase
Fish species data
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Shark-Base
Elasmobranch records
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OBIS
Marine occurrences
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WoRMS
Marine species register
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GlobalFungi
Fungal occurrence database
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SEINet / Symbiota
Herbarium networks with a checklist generator
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Calflora
California plant occurrences and rarity
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Jepson eFlora
California flora
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antmaps.org
Ant distributions
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Recently Extinct Plants and Animals Database
Extinctions including plants and invertebrates
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Threatened Island Biodiversity Database
Islands crossed with threatened species and invasives
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World Database of Key Biodiversity Areas
KBA boundaries and triggers
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Alliance for Zero Extinction
AZE sites and species
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Local Biodiversity Outlooks
Community biodiversity reporting
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snakeDatabase LD50
Venom and LD50 reference