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Wikipedia
Editor-curated species articles, typically with photos, habitat and distribution
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Wikidata
Structured knowledge base — source of Q-IDs, images, range maps and traits
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iNaturalist
Citizen-science platform with worldwide sightings, taxonomy and common names
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WoRMS
World Register of Marine Species — authoritative taxonomy for marine organisms
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FishBase
Global database for fishes only — size, biology, occurrence
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IUCN Red List
List of globally threatened animal and plant species published by the IUCN
