Species
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From the diatoms of the phytoplankton slides to the whales of the Farallon census, keyed to one accepted name (WoRMS; ITIS for birds) so the same species means the same thing in every dataset. Every taxon has its own page, and the 1,540 observed carry 890 ancestors that roll them up.
The machine-readable form is one JSON per taxon (/species/{slug}.json) and sitemap.xml.
1,000 species 1,540 taxa observed 12 datasets 1,586,032 observations 2,430 pages release v2026.10.21
No class holds a match; the Matches above and the tree have every rank.
The tree · 2,430 taxa with an observation at or below
species · observations · datasetsWhich species, in which datasets
taxa observed · class × datasetClick a band to zoom into that clade; the breadcrumb climbs back out. The two authorities are merged where they name the same rank twice — the taxon table keys birds through ITIS and everything else through WoRMS, so Animalia, Chordata, Vertebrata and Gnathostomata each appear once here and link to their WoRMS page. Dataset colour is never the only cue: a dot always has its dataset's name beside it, and the matrix is one sequential ramp.