Data & Visualizations
The numbers behind beagle testing — sourced, structured, and visualized.
Dogs in US Regulated Research, 1973–2024
From 211,104 at peak to 42,880 — but toxicology use has increased
The headline decline masks a structural shift: teaching and basic research shrank, but regulated toxicology — the core of beagle demand — grew.
Note: Pre-2016 values marked 'medium' are derived from NRC compilations. Pain categories available from 2022.
Source: USDA APHIS annual summaries; NRC 2009; National Academies 2020
How Dogs Suffer: USDA Pain Categories
FY2022–2024 — Column E (unrelieved pain) increased 20% from 2022 to 2023
The 410 dogs in Column E experience the full toxic effects of test substances — nausea, organ failure, seizures — without any pain mitigation.
Source: USDA APHIS Annual Report Summaries, FY2022–2024
Who's Watching? USDA vs DATCP at Ridglan
Same facility, same years. Radically different findings.
Source: Rise for Animals analysis of USDA inspection records; DATCP citations September 2025
Dogs Reported by CRO (USDA Data)
Most recent available USDA annual report data per registration
These are the only publicly available dog counts for CROs. No CRO discloses beagle-specific numbers. The actual global total is higher — these are single-registration snapshots, not enterprise-wide counts.
Note: USDA reports 'dogs' not 'beagles.' SNBL transferred US operations to Altasciences ~2018. Inotiv/Envigo ceased Cumberland operations Sept 2022.
Source: USDA APHIS Form 7023 annual reports: Charles River FY2022 (14-R-0144), Labcorp FY2017 (35-R-0030), Altasciences FY2023 (3 certificates combined)
The Rise and Fall of US Beagle Breeding
Key events from the founding of Marshall Farms (1939) to the present — showing consolidation from dozens of suppliers to one
Source: Compiled from USDA records, SEC filings, DOJ press releases, court documents, investigative reporting, and advocacy documentation